Quote Originally Posted by Norm View Post
You can delete your own posts. But, deleting a thread would result in deleting other member's posts. We can't allow that.
You could make it so when a member "deletes" their own thread, that it's actually not deleted, but moved to a "moderator only" trash-can type sub-forum. (A forum I'm an admin of does this.) That way, there is never an actual loss of data, it just gets moved to a place where only moderators could view it.