I once got mad, and uploaded a "spam" head probably 20+ times through someone's email. Ended up getting banned for a week, and was also banned from uploading. I asked xor to unban me, took 3 months, I believe. I don't think the support website existed at the time.

I think that if you keep asking over and over, they won't unban you. They should really put a timer for those things.

Also, I believe that they ban your ip, and not just one account.

Can't really say much, since I have no idea what your "lil experiment" looks like. If it's been a year, then who knows what you tried to upload.