I don't think loser games are ever, like, super strenuous or big trauma games or anything! Usually they're smaller, easier participation-type games. Also generally characters are not ICly aware that loser games = everyone is going to win, so the only thing would be OOC motivation, which would just be "it's fun to play in the game!" But if people think it would be an issue I don't really see why gamerunners couldn't do a little extra if they felt like it.