I understand perfeclty your doubt but I thnk that your idea for allowing vote is not good. I have a friend who doesn't make any image but likes computer graphic and has a log to renderosity. Also there is another question: sometimes who has a lot of friend recieves a lot of votes. What can we do? the only possibility, I think, is to trust in our fellow members and accept the "popular" sentence. Taste is taste... and at least, theese are only challenge for ouselves they are not essential for our life or for our careers.