as far as I can tell, you were never banned. there are no infractions on your account, nothing in admin cp, no trace of any sort of ban. so, IMO, you are on a clean slate.
One thing though, if you WERE banned and there isn't a record of it, we have upped trolling infractions to 10 points. that means, 1st one is a week ban, 2nd 30 days, 3rd is permanent.
I sent a password reset to you because we recently forced all members to get a new password due to a potential hack.