I'm not leaving, before you start pointing fingers, but I think that, to stop "I'm leaving" threads, which are, as far as i can tell, used to boost post counts, you should put in a rule that if you do say "I'm leaving", then the persons account should be closed even if they come back. That way you can't boost post counts by saying your leaving, instead, you dramatically lower it.
If you already are doing this and I just don't know, or if this thread has already been done, sorry
!I didn't mean to!