A friend of mine has been trying to join the server but every time he tries to sign up it says his username is inappropriate. I completely understand why the auto censor function would think that but his name is completely innocent.
His username is georgemcmuffn.
Is there anyway his name could be pardoned or something?

When did he attempt to register; we recently edited the username filter to remove a selection of words which were wrongly being flagged up?

If it was recently then I suggest he goes onto the server and asks a moderator/admin in-game for assistance with registration.