diff --git a/r2/r2/lib/butler.py b/r2/r2/lib/butler.py
index 333f86be9..78893e80e 100644
--- a/r2/r2/lib/butler.py
+++ b/r2/r2/lib/butler.py
@@ -63,6 +63,10 @@ def monitor_mentions(comment):
     usernames = list(extract_user_mentions(comment.body))
     inbox_class = Inbox.rel(Account, Comment)
 
+    # don't be a jerk spammer
+    if len(usernames) > 3:
+        return
+
     # Subreddit.can_view stupidly requires this.
     c.user_is_loggedin = True