Karma rating?

Dunno if any of you guys have seen it on a few forums like I have... but Karma ratings would be great here.

After each game against a certain player, you can give them thums up or down, depending on how you feel the player has acted / moved. (very chattable, moves in steady paces, doesn't abandon ill-started games etc.)

Just a thought.

Flix

Problem is, a lot of people (in my opinion) would purposely vote thumbs down if they lost too easily, so the people with higher ratings might tend to have the lower "karma" ratings.

But that's just my opinion.