At least among the high ranked players. I'm not talking about numbers, but just being decent and fair. The majority of the time when I'm playing 2 vs. 2 and my teammate looses all his lives, one of the other team's members will sit off to the side instead of ganging up on me. I'm sure people who play the game as much as me know what I'm talking about. I think it's just the right thing to do and it usually ends up making the match a lot more interesting.
So yeah...Kudos to the All Stars online community. I think we're awesome.