Matchmaking and Reporting players.
Whiny, pointless rant below.
I recently had a game where 3 out of the 4 players were negative, hostile, and plain rude. As you may have guessed, we lost by a landslide as such types of people do, and I felt the behavior displayed warranted reporting. The next queue, I find myself in a lobby with the SAME people that I had just reported, and I find myself in a situation where I either give these horrible people another chance to ruin my night entirely, as i suffer their existence, or I am forced to dodge the game and wait, effectively punishing ME for their bad behavior. There should be some mechanism in place to avoid players whom you report.
End rant.