You can PM the one at the top. Just click his profile
Anyway, I'm all for it, but people would have higher win rates for games with less people. It's harder to win a six person game than it is to win a four person game, since you have more enemies. I think the percentage shouldn't be only on wins, but more on opponents defeated to your own defeats. Not opponents eliminated, mind, since one can kill all opponents save for one and still lose the game (Although this is admittedly quite close to impossible).
It'd be more accurate. Perhaps in-depth statistics are in order, like three-person games won, four-person games won, five-person games won, six-person games won and such.