Well I think I can answer this, to some degree. We respect members privacy, so we try to keep their information hidden. If so happen a new registered member comes in, and their sole intent is to steal members information, for spamming intents. Membership area is sometimes the easious area to hack. That is one of the main areas they try for, to hack into a system also.
Another thing that has happen lately, certain people looking to see if someone is a member, if not, they take his aka and the tries to be that person, so to get passwords, from certain forums, making forum owners think it is the person intended for the password. If I am not mistaken Sharbear had this happen to her some time back, in a game of hers.