I've been taking advantage of the new violation report button when I see fanart that I know is from a screenshot or a coloring book. I've actually owned almost all the Aladdin coloring books that have ever been published, so I can spot so called "MS Paint" artists who claim they're the original creators of coloring book images. Even easier to catch are the screenshot backgrounds, and even EASIER than that is when the description itself says "Background is a screenshot."

Anyway, I reported a fanart piece that actually said in the description that the background is from a disney movie and I got the results note about that policy violation:

A member of staff has reviewed this deviation and has determined that it is legitimate fan art. No action is required.

I think that's lame. Oh well.