With VBulletin, it doesn’t automatically change the tag under the users name when you revoke their posting privileges. An admin has to go in there and manually change the text field to “Banned”. I am guessing that sometimes the admins type “BANNED”, and sometimes they type “Banned”. The tag itself really has nothing to do with their status. Someone could change my tag to “Moderator” or “Too stupid for words” and it would have no effect on my status, if they didn’t edit my access rights also.
I assume this is the case, based on prior VBulletin experience. Someone may be along to correct me shortly.