Well, I think it's because Raptor has gone on holidays (or so he said), and there's no-one to yell at spammers.
Also, I think that CH is trying to lock Resolved topics, as well as call them Resolved.
EDIT: WHOA! I look at unread topics, and like half of them are locked, and they're mostly CBMatt! Looks like he's taken on board the roles of a moderator.
EDIT: Hey! What happened to the Last edit on ------- by ------ thing? It's disappeared!