Agree on #4 - well, all of them actually, but especially #4.
I regularly stumble onto threads where the now-banned troll has apparently carried on a discussion, only to find that all of his/her posts are "pulled." I understand that this is a private forum and we don't want the trolls and DUmmies to take over, but I'd kind of like to see them allowed to suffer a little longer so maybe I can get to join in on the "kill." Is there any way to ban them without losing the valuable proof of their stupidity?
There is a super secret way to look at deleted posts on a thread....