I tried to find out a few weeks ago, and managed to see that you seemed to be able to bet your account set to Anonymous if you asked for it (I figure in order to preserve the posts):
It turns out to be @SyphirXs account. That account is not accesible, but does preserve the username tied to his posts (for example here: https://bitcointalk.org/index.php?topic=407.0). On this same thread there is a post by "Anonymous", which I figure relates to a requested to delete account as per the quote at the top of this post.