Hm, that's a good point!
But then again, what is the point of stealing art that's on a level which you could have created yourself? I get stealing art from more experienced artists, to show off impressive skills the thieves themselves don't have in order to gain attention and admiration. But a beginner's art? Beginner artists usually get the feeling of support from the community which encourages them to practice. That's a nice feeling, but something everyone could accomplish.