I think anaxagoras is conserned about what some of you have said. Being a nice person, he accepts an unrated game for a lower player to help them out. His average opponent rating goes down and one could think he only playes lower rated players and that might "scare" some people away from playing him. As far as win/loss I think the game should still count in that stat-ot at least make a seperate win/loss stat for unrated games.
After I finish an unrated game with a very low rated opponent, it brings down my average opponent's rating. What gives? That's obviously silly.