Improving fellow players.

[Savannah]

My current strategy is to avoid encouraging the behavior we want to stop. Particularly, not dragging jokes out, not laughing or even paying attention to inappropriate comments, and not collectively flaying the more defensive players. Its met with limited success.

Yeah, that's pretty much the only real way to change other people's behavior: don't reward (ie don't give social attention to) the behavior you don't want and do reward that which you do. Works best if everyone does it, though....