Check out the hot 20. The top image was posted last year and shot right to the top. Now it's there again. As you recall, it caused all kinds of controversy when it was first posted - mostly because it's a piece of fractal crap, but somehow it made it to the top anyway. So, did 28 people have a party today and vote that old image to the top, or did one person figure out a way to vote for an image several times?