@Danimal: I was under the impression that the new Art Challenge code automatically hands out medals to the winners, but it doesn't seem so. I'll have to check whether I can manually add medals (but I think I don't have the necessary permissions). Anyway, since the medals currently aren't shown on the forums anyway, this seems less urgent.

@surt: Maybe you're right. The problem, however, is that specific technical requirements tend to limit the kind of art that can be submitted, e.g. to pixel art, and exclude others. That might lead to even lower participation rates. I'll see what I can do.