At the moment, we can split games between two types of players. "Ambassador" games, for those whose behaviour is effectively impeccable, and "Diplomat" games, for those whose behavior ranges from atrocious to good.
Recent events, where I have seen a prolific player surrendering the second their position looks slightly negative, has suggested to me that this is not sufficient, and as such I would like to propose the introduction of a third option, to allow us to further breakdown the "Diplomat" class.
Rather than restricting the game to players who behavior is effectively impeccable, it would exclude players whose behaviour is beyond the pale. I propose that this be done by allowing "Diplomat" class games to be created that exclude individuals who, of their last 20 games, have surrendered in at least 6 of them.
This should only affect a tiny minority of players, but it should result in a vast improvement in the quality games for the rest.