Well I think you should not be ashamed of your work, and if that embarrasses you, do not do it, make other models that you can feel proud of, with your own style.
I think that allowing several accounts per user, would help cheaters camouflage themselves better, and instead of having an account with 12,000 models and lose them all if they are discovered, they could have 12 accounts with 1,000 models each.