I met this user and I saw he just received +4 reputation for one single edit 2 days ago.
I'm curious, is there anything behind this behavior is it just a favorite cache/"recalculation needed" problem?
I met this user and I saw he just received +4 reputation for one single edit 2 days ago.
I'm curious, is there anything behind this behavior is it just a favorite cache/"recalculation needed" problem?
No, it is always just +2. The user's profile shows +4 because he has two edits that were approved for that question on that day. See the revision history.