Hmmm to do list get some minions. Personally I think the easy solution one which many might not like is to limit people to one hot 20 image at a time. I really don't like going after someone like this and as a mod would try to implement a solution that maybe would piss off everyone. (like limiting one image in the hot 20 per artist each week)

The wit of a misplaced ex-patriot.
I cheated on my metaphysics exam by looking into the soul of the person next to me.