No offense, but you DID give out personal info. Regardless if staff was there to witness it or not, they can always check logs and if they see what you did was against their rules, they can ban you...no questions asked.
And I know I'm not a mod here or anything, but being that this person violated the rules by giving out personal info and admitted to violating the rules...perhaps it's not in the best interest to advise people to work around bans. While VMK bans willy nilly, they do have some bans set in place for good reasons.