Problem creating new user

The Forums use a simple filtering algorithm on new user names to reduce the number of offensive/abusive names registered in the system. For instance, various four letter profanities are banned from being part of user names. Certain body parts are on the ban list. The algorithm is detecting "arse" in dbarselow and rejecting it as a user name. You can either select a new user name or one of the administrators can potentially override the rule to allow creation of your user account.