This is awesome. It's interesting to me how it messes with my incentives. At first I was just pulling the lever on the slot machine, then I went back and clicked on the pieces I really liked (to mark them as "viewed" for the Art Institute and show some love), but finally realized that I was systematically working to remove my favorites from the pool of images people would see.

In the end I just clicked on the "refresh" button a few more times.