diff --git a/lemmy_apub/src/activities/send/community.rs b/lemmy_apub/src/activities/send/community.rs
index 446ce6f34..ef990c24c 100644
--- a/lemmy_apub/src/activities/send/community.rs
+++ b/lemmy_apub/src/activities/send/community.rs
@@ -42,10 +42,6 @@ impl ActorType for Community {
     self.private_key.to_owned()
   }
 
-  fn user_id(&self) -> i32 {
-    self.creator_id
-  }
-
   async fn send_follow(
     &self,
     _follow_actor_id: &Url,
diff --git a/lemmy_apub/src/activities/send/user.rs b/lemmy_apub/src/activities/send/user.rs
index c4d287a56..2759e8f98 100644
--- a/lemmy_apub/src/activities/send/user.rs
+++ b/lemmy_apub/src/activities/send/user.rs
@@ -32,10 +32,6 @@ impl ActorType for User_ {
     self.private_key.to_owned()
   }
 
-  fn user_id(&self) -> i32 {
-    self.id
-  }
-
   /// As a given local user, send out a follow request to a remote community.
   async fn send_follow(
     &self,
diff --git a/lemmy_apub/src/activity_queue.rs b/lemmy_apub/src/activity_queue.rs
index c8c8af37e..ac96227dc 100644
--- a/lemmy_apub/src/activity_queue.rs
+++ b/lemmy_apub/src/activity_queue.rs
@@ -219,7 +219,7 @@ where
   // might send the same ap_id
   if insert_into_db {
     let id = activity.id().context(location_info!())?;
-    insert_activity(id, actor.user_id(), activity.clone(), true, pool).await?;
+    insert_activity(id, activity.clone(), true, pool).await?;
   }
 
   for i in inboxes {
diff --git a/lemmy_apub/src/inbox/community_inbox.rs b/lemmy_apub/src/inbox/community_inbox.rs
index ffc5f6d71..0e7ad3315 100644
--- a/lemmy_apub/src/inbox/community_inbox.rs
+++ b/lemmy_apub/src/inbox/community_inbox.rs
@@ -88,20 +88,12 @@ pub async fn community_inbox(
 
   let any_base = activity.clone().into_any_base()?;
   let kind = activity.kind().context(location_info!())?;
-  let user_id = user.id;
   let res = match kind {
     ValidTypes::Follow => handle_follow(any_base, user, community, &context).await,
     ValidTypes::Undo => handle_undo_follow(any_base, user, community, &context).await,
   };
 
-  insert_activity(
-    &activity_id,
-    user_id,
-    activity.clone(),
-    false,
-    context.pool(),
-  )
-  .await?;
+  insert_activity(&activity_id, activity.clone(), false, context.pool()).await?;
   res
 }
 
diff --git a/lemmy_apub/src/inbox/shared_inbox.rs b/lemmy_apub/src/inbox/shared_inbox.rs
index 4457a1a6d..3c7fa1bfb 100644
--- a/lemmy_apub/src/inbox/shared_inbox.rs
+++ b/lemmy_apub/src/inbox/shared_inbox.rs
@@ -125,14 +125,7 @@ pub async fn shared_inbox(
     ValidTypes::Undo => receive_undo(&context, any_base, actor_id, request_counter).await,
   };
 
-  insert_activity(
-    &activity_id,
-    actor.user_id(),
-    activity.clone(),
-    false,
-    context.pool(),
-  )
-  .await?;
+  insert_activity(&activity_id, activity.clone(), false, context.pool()).await?;
   res
 }
 
diff --git a/lemmy_apub/src/inbox/user_inbox.rs b/lemmy_apub/src/inbox/user_inbox.rs
index 653a447c5..35ff5c7ad 100644
--- a/lemmy_apub/src/inbox/user_inbox.rs
+++ b/lemmy_apub/src/inbox/user_inbox.rs
@@ -107,14 +107,7 @@ pub async fn user_inbox(
     }
   };
 
-  insert_activity(
-    &activity_id,
-    actor.user_id(),
-    activity.clone(),
-    false,
-    context.pool(),
-  )
-  .await?;
+  insert_activity(&activity_id, activity.clone(), false, context.pool()).await?;
   res
 }
 
diff --git a/lemmy_apub/src/lib.rs b/lemmy_apub/src/lib.rs
index 4449c94f4..b2d64d53a 100644
--- a/lemmy_apub/src/lib.rs
+++ b/lemmy_apub/src/lib.rs
@@ -169,9 +169,6 @@ pub trait ActorType {
   fn public_key(&self) -> Option<String>;
   fn private_key(&self) -> Option<String>;
 
-  /// numeric id in the database, used for insert_activity
-  fn user_id(&self) -> i32;
-
   async fn send_follow(
     &self,
     follow_actor_id: &Url,
@@ -256,7 +253,6 @@ pub trait ActorType {
 /// persistent.
 pub async fn insert_activity<T>(
   ap_id: &Url,
-  user_id: i32,
   activity: T,
   local: bool,
   pool: &DbPool,
@@ -266,7 +262,7 @@ where
 {
   let ap_id = ap_id.to_string();
   blocking(pool, move |conn| {
-    Activity::insert(conn, ap_id, user_id, &activity, local)
+    Activity::insert(conn, ap_id, &activity, local)
   })
   .await??;
   Ok(())
diff --git a/lemmy_db/src/activity.rs b/lemmy_db/src/activity.rs
index 539820fc2..3c67070b0 100644
--- a/lemmy_db/src/activity.rs
+++ b/lemmy_db/src/activity.rs
@@ -13,7 +13,6 @@ use std::{
 pub struct Activity {
   pub id: i32,
   pub ap_id: String,
-  pub user_id: i32,
   pub data: Value,
   pub local: bool,
   pub published: chrono::NaiveDateTime,
@@ -24,7 +23,6 @@ pub struct Activity {
 #[table_name = "activity"]
 pub struct ActivityForm {
   pub ap_id: String,
-  pub user_id: i32,
   pub data: Value,
   pub local: bool,
   pub updated: Option<chrono::NaiveDateTime>,
@@ -59,18 +57,15 @@ impl Activity {
   pub fn insert<T>(
     conn: &PgConnection,
     ap_id: String,
-    user_id: i32,
     data: &T,
     local: bool,
   ) -> Result<Self, IoError>
   where
     T: Serialize + Debug,
   {
-    debug!("inserting activity for user {}: ", user_id);
     debug!("{}", serde_json::to_string_pretty(&data)?);
     let activity_form = ActivityForm {
       ap_id,
-      user_id,
       data: serde_json::to_value(&data)?,
       local,
       updated: None,
diff --git a/lemmy_db/src/schema.rs b/lemmy_db/src/schema.rs
index c755009b1..b01236050 100644
--- a/lemmy_db/src/schema.rs
+++ b/lemmy_db/src/schema.rs
@@ -2,7 +2,6 @@ table! {
     activity (id) {
         id -> Int4,
         ap_id -> Text,
-        user_id -> Int4,
         data -> Jsonb,
         local -> Bool,
         published -> Timestamp,
@@ -481,7 +480,6 @@ table! {
     }
 }
 
-joinable!(activity -> user_ (user_id));
 joinable!(comment -> post (post_id));
 joinable!(comment -> user_ (creator_id));
 joinable!(comment_like -> comment (comment_id));