I know this has probably been beaten to death, but there really needs to be a way to remove yourself from posted content. I understand deleting content has its issues, but certainly you should be able to transfer something you posted to an Anonymous account.
I'm really going to open myself up to trolls here, but not being able to delete things you posted is a major issue for the new careers feature. I'm not talking about stupid questions / answers I've posted so much as smart ass remarks / troll posts. You will probably say that one deserves to have their inflammatory comments stay attached to their name. I think that everyone has bad moments though, and there should be a way to publicly delete it. Not having delete forces people to create new accounts just to use the careers feature.
Edit: I just want to make it clear that I agree you shouldn't post anything you don't stand by. I'm saying though there should be some recourse for when you did.