diff --git a/Cargo.lock b/Cargo.lock
index 5347af0..90729c1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3426,6 +3426,7 @@ dependencies = [
  "dashmap 5.5.3",
  "flume 0.10.14",
  "futures-util",
+ "poise",
  "rand",
  "serde",
  "serenity",
diff --git a/youmubot-core/Cargo.toml b/youmubot-core/Cargo.toml
index 8b8f26c..ac00c6b 100644
--- a/youmubot-core/Cargo.toml
+++ b/youmubot-core/Cargo.toml
@@ -19,6 +19,8 @@ futures-util = "0.3.21"
 tokio = { version = "1.19.2", features = ["time"] }
 flume = "0.10.13"
 dashmap = "5.3.4"
+poise = { git = "https://github.com/serenity-rs/poise", branch = "current" }
 
 youmubot-db = { path = "../youmubot-db" }
+youmubot-db-sql = { path = "../youmubot-db-sql" }
 youmubot-prelude = { path = "../youmubot-prelude" }
diff --git a/youmubot-core/src/admin/ignore.rs b/youmubot-core/src/admin/ignore.rs
new file mode 100644
index 0000000..379bf0e
--- /dev/null
+++ b/youmubot-core/src/admin/ignore.rs
@@ -0,0 +1,152 @@
+use std::sync::Arc;
+
+use chrono::{DateTime, Utc};
+use dashmap::DashMap;
+use serenity::all::User;
+use youmubot_db_sql::models::ignore_list as model;
+use youmubot_prelude::*;
+
+use crate::HasCoreEnv;
+
+// Should we ignore this user?
+pub fn should_ignore(env: &impl HasCoreEnv, id: UserId) -> bool {
+    env.core_env().ignore.query(id).is_some()
+}
+
+/// Ignore: make Youmu ignore all commands from an user.
+#[poise::command(
+    slash_command,
+    subcommands("add", "remove", "list"),
+    owners_only,
+    install_context = "User",
+    interaction_context = "Guild|BotDm"
+)]
+pub async fn ignore<U: HasCoreEnv>(_ctx: CmdContext<'_, U>) -> Result<()> {
+    Ok(())
+}
+
+/// Add an user to ignore list.
+#[poise::command(slash_command, owners_only)]
+async fn add<U: HasCoreEnv>(
+    ctx: CmdContext<'_, U>,
+    #[description = "Discord username"] discord_name: User,
+) -> Result<()> {
+    let env = ctx.data().core_env();
+    ctx.defer().await?;
+    let msg = format!("User **{}** ignored!", discord_name.name);
+    env.ignore
+        .add(&env.prelude, UserId(discord_name.id), discord_name.name)
+        .await?;
+    ctx.say(msg).await?;
+    Ok(())
+}
+
+/// Remove an user from ignore list.
+#[poise::command(slash_command, owners_only)]
+async fn remove<U: HasCoreEnv>(
+    ctx: CmdContext<'_, U>,
+    #[description = "Discord username"] discord_name: User,
+) -> Result<()> {
+    let env = ctx.data().core_env();
+    ctx.defer().await?;
+    env.ignore
+        .remove(&env.prelude, UserId(discord_name.id))
+        .await?;
+    let msg = format!("User **{}** removed from ignore list!", discord_name.name);
+    ctx.say(msg).await?;
+    Ok(())
+}
+
+/// List ignored users.
+#[poise::command(slash_command, owners_only)]
+async fn list<U: HasCoreEnv>(ctx: CmdContext<'_, U>) -> Result<()> {
+    let env = ctx.data().core_env();
+    let is_dm = ctx.guild_id().is_none();
+    ctx.defer().await?;
+    let users = env
+        .ignore
+        .list
+        .clone()
+        .iter()
+        .map(|v| {
+            format!(
+                "- {} ({}), since <t:{}:R>",
+                v.username,
+                if is_dm {
+                    v.id.0.mention().to_string()
+                } else {
+                    format!("`{}`", v.id.0.get())
+                },
+                v.ignored_since.timestamp(),
+            )
+        })
+        .collect::<Vec<_>>()
+        .join("\n");
+    let users = if users == "" {
+        "No one is being ignored!"
+    } else {
+        &users[..]
+    };
+
+    let msg = format!("Ignored users:\n{}", users);
+    ctx.say(msg).await?;
+    Ok(())
+}
+
+#[derive(Debug, Clone)]
+pub(crate) struct IgnoredUsers {
+    list: Arc<DashMap<UserId, IgnoredUser>>,
+}
+
+impl IgnoredUsers {
+    pub async fn from_db(env: &Env) -> Result<Self> {
+        let list = model::IgnoredUser::get_all(&env.sql).await?;
+        let mp: DashMap<_, _> = list
+            .into_iter()
+            .map(|v| {
+                let id = (v.id as u64).into();
+                (
+                    id,
+                    IgnoredUser {
+                        id,
+                        username: v.username,
+                        ignored_since: v.ignored_since,
+                    },
+                )
+            })
+            .collect();
+        Ok(Self { list: Arc::new(mp) })
+    }
+
+    pub fn query<'a>(
+        &'a self,
+        id: UserId,
+    ) -> Option<impl std::ops::Deref<Target = IgnoredUser> + 'a> {
+        self.list.get(&id)
+    }
+
+    pub async fn add(&self, env: &Env, id: UserId, username: String) -> Result<()> {
+        let iu = model::IgnoredUser::add(&env.sql, id.0.get() as i64, username).await?;
+        self.list.insert(
+            id,
+            IgnoredUser {
+                id,
+                username: iu.username,
+                ignored_since: iu.ignored_since,
+            },
+        );
+        Ok(())
+    }
+
+    pub async fn remove(&self, env: &Env, id: UserId) -> Result<bool> {
+        model::IgnoredUser::remove(&env.sql, id.0.get() as i64).await?;
+        Ok(self.list.remove(&id).is_some())
+    }
+}
+
+#[derive(Debug, Clone)]
+pub(crate) struct IgnoredUser {
+    pub id: UserId,
+    pub username: String,
+    pub ignored_since: DateTime<Utc>,
+}
diff --git a/youmubot-core/src/admin/mod.rs b/youmubot-core/src/admin/mod.rs
index 2c766e2..6680c0a 100644
--- a/youmubot-core/src/admin/mod.rs
+++ b/youmubot-core/src/admin/mod.rs
@@ -13,6 +13,8 @@ use youmubot_prelude::*;
 mod soft_ban;
 pub use soft_ban::watch_soft_bans;
 
+pub mod ignore;
+
 #[group]
 #[description = "Administrative commands for the server."]
 #[commands(clean, ban, kick, soft_ban, soft_ban_init)]
diff --git a/youmubot-core/src/lib.rs b/youmubot-core/src/lib.rs
index ce32b17..00f2783 100644
--- a/youmubot-core/src/lib.rs
+++ b/youmubot-core/src/lib.rs
@@ -17,11 +17,32 @@ pub mod community;
 mod db;
 pub mod fun;
 
+#[derive(Debug, Clone)]
+pub struct CoreEnv {
+    pub(crate) prelude: Env,
+    pub(crate) ignore: admin::ignore::IgnoredUsers,
+}
+
+impl CoreEnv {
+    async fn new(prelude: Env) -> Result<Self> {
+        let ignore = admin::ignore::IgnoredUsers::from_db(&prelude).await?;
+        Ok(Self { prelude, ignore })
+    }
+}
+
+/// Gets an [CoreEnv] from the current environment.
+pub trait HasCoreEnv: Send + Sync {
+    fn core_env(&self) -> &CoreEnv;
+}
+
+impl<T: AsRef<CoreEnv> + Send + Sync> HasCoreEnv for T {
+    fn core_env(&self) -> &CoreEnv {
+        self.as_ref()
+    }
+}
+
 /// Sets up all databases in the client.
-pub fn setup(
-    path: &std::path::Path,
-    data: &mut TypeMap,
-) -> serenity::framework::standard::CommandResult {
+pub async fn setup(path: &std::path::Path, data: &mut TypeMap, prelude: Env) -> Result<CoreEnv> {
     db::SoftBans::insert_into(&mut *data, &path.join("soft_bans.yaml"))?;
     db::load_role_list(
         &mut *data,
@@ -32,7 +53,7 @@ pub fn setup(
     // Start reaction handlers
     data.insert::<community::ReactionWatchers>(community::ReactionWatchers::new(&*data)?);
 
-    Ok(())
+    CoreEnv::new(prelude).await
 }
 
 pub fn ready_hook(ctx: &Context) -> CommandResult {
diff --git a/youmubot-prelude/src/args.rs b/youmubot-prelude/src/args.rs
index c6410ce..6803dfa 100644
--- a/youmubot-prelude/src/args.rs
+++ b/youmubot-prelude/src/args.rs
@@ -189,9 +189,15 @@ mod ids {
     use super::ParseError;
 
     /// An `UserId` parsed the old way.
-    #[derive(Debug, Clone, Copy, PartialEq, Eq)]
+    #[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
     pub struct UserId(pub id::UserId);
 
+    impl From<u64> for UserId {
+        fn from(value: u64) -> Self {
+            Self(id::UserId::new(value))
+        }
+    }
+
     impl FromStr for UserId {
         type Err = ParseError;
 
diff --git a/youmubot/src/main.rs b/youmubot/src/main.rs
index 9404011..ca2d25a 100644
--- a/youmubot/src/main.rs
+++ b/youmubot/src/main.rs
@@ -53,6 +53,8 @@ struct Env {
     prelude: youmubot_prelude::Env,
     #[cfg(feature = "osu")]
     osu: youmubot_osu::discord::OsuEnv,
+    #[cfg(feature = "core")]
+    core: youmubot_core::CoreEnv,
 }
 
 impl AsRef<youmubot_prelude::Env> for Env {
@@ -68,6 +70,13 @@ impl AsRef<youmubot_osu::discord::OsuEnv> for Env {
     }
 }
 
+#[cfg(feature = "core")]
+impl AsRef<youmubot_core::CoreEnv> for Env {
+    fn as_ref(&self) -> &youmubot_core::CoreEnv {
+        &self.core
+    }
+}
+
 impl TypeMapKey for Env {
     type Value = Env;
 }
@@ -219,7 +228,9 @@ async fn main() {
         let prelude = setup::setup_prelude(&db_path, sql_path, &mut data).await;
         // Setup core
         #[cfg(feature = "core")]
-        youmubot_core::setup(&db_path, &mut data).expect("Setup db should succeed");
+        let core = youmubot_core::setup(&db_path, &mut data, prelude.clone())
+            .await
+            .expect("Setup db should succeed");
         // osu!
         #[cfg(feature = "osu")]
         let osu = youmubot_osu::discord::setup(&mut data, prelude.clone(), &mut announcers)
@@ -233,6 +244,8 @@ async fn main() {
             prelude,
             #[cfg(feature = "osu")]
             osu,
+            #[cfg(feature = "core")]
+            core,
         }
     };
 
@@ -266,20 +279,49 @@ async fn main() {
                 case_insensitive_commands: true,
                 ..Default::default()
             },
+            command_check: Some(|ctx| {
+                Box::pin(command_check(ctx.data(), UserId(ctx.author().id)).map(Ok))
+            }),
             on_error: |err| {
                 Box::pin(async move {
-                    if let poise::FrameworkError::Command { error, ctx, .. } = err {
-                        let reply = format!(
-                            "Command '{}' returned error: {:?}",
-                            ctx.invoked_command_name(),
-                            error
-                        );
-                        eprintln!("{}\n{:?}", reply, error);
-                        ctx.send(poise::CreateReply::default().content(reply).ephemeral(true))
+                    match err {
+                        poise::FrameworkError::Command { error, ctx, .. } => {
+                            let reply = format!(
+                                "Command '{}' returned error: {:?}",
+                                ctx.invoked_command_name(),
+                                error
+                            );
+                            eprintln!("{}\n{:?}", reply, error);
+                            ctx.send(poise::CreateReply::default().content(reply).ephemeral(true))
+                                .await
+                                .pls_ok();
+                        }
+                        poise::FrameworkError::NotAnOwner { ctx, .. } => {
+                            ctx.send(
+                                poise::CreateReply::default()
+                                    .content("You have to be an owner to run this command!")
+                                    .ephemeral(true),
+                            )
                             .await
                             .pls_ok();
-                    } else {
-                        eprintln!("Poise error: {:?}", err)
+                        }
+                        poise::FrameworkError::CommandCheckFailed { error: _, ctx, .. }
+                        | poise::FrameworkError::CooldownHit {
+                            remaining_cooldown: _,
+                            ctx,
+                            ..
+                        } => {
+                            ctx.send(
+                                poise::CreateReply::default()
+                                    .content("You are being rate-limited, please try again later!")
+                                    .ephemeral(true),
+                            )
+                            .await
+                            .pls_ok();
+                        }
+                        _ => {
+                            eprintln!("Poise error: {:?}", err)
+                        }
                     }
                 })
             },
@@ -287,6 +329,8 @@ async fn main() {
                 poise_register(),
                 #[cfg(feature = "osu")]
                 youmubot_osu::discord::osu_command(),
+                #[cfg(feature = "core")]
+                youmubot_core::admin::ignore::ignore(),
             ],
             ..Default::default()
         })
@@ -398,25 +442,37 @@ async fn poise_register(ctx: CmdContext<'_, Env>) -> Result<()> {
     Ok(())
 }
 
+async fn command_check(env: &Env, author: UserId) -> bool {
+    #[cfg(feature = "core")]
+    if youmubot_core::admin::ignore::should_ignore(env, author) {
+        tracing::info!("User is in ignore list, skipping...");
+        return false;
+    }
+    true
+}
+
 // Hooks!
 
 #[hook]
-async fn before_hook(_: &Context, msg: &Message, command_name: &str) -> bool {
-    println!(
+async fn before_hook(ctx: &Context, msg: &Message, command_name: &str) -> bool {
+    let env = ctx.data.read().await;
+    let env = env.get::<Env>().unwrap();
+    tracing::info!(
         "Got command '{}' by user '{}'",
-        command_name, msg.author.name
+        command_name,
+        msg.author.name
     );
-    true
+    command_check(env, UserId(msg.author.id)).await
 }
 
 #[hook]
 async fn after_hook(ctx: &Context, msg: &Message, command_name: &str, error: CommandResult) {
     match error {
-        Ok(()) => println!("Processed command '{}'", command_name),
+        Ok(()) => tracing::info!("Processed command '{}'", command_name),
         Err(why) => {
             let reply = format!("Command '{}' returned error {:?}", command_name, why);
             msg.reply(&ctx, &reply).await.ok();
-            println!("{}", reply)
+            tracing::info!("{}", reply)
         }
     }
 }
@@ -441,6 +497,9 @@ async fn on_dispatch_error(ctx: &Context, msg: &Message, error: DispatchError, _
                 max, given
             ),
             DispatchError::OnlyForGuilds => "🔇 This command cannot be used in DMs.".to_owned(),
+            DispatchError::OnlyForOwners => {
+                "🔇 This command can only be used by bot owners.".to_owned()
+            }
             _ => return,
         },
     )