I found the game really enjoyable when I did not have to listen to people making remarks about my playing...by lowering the voice volume all the way. It also saved me from having to listen to random strains of someone's music or breathing.
They need to require DOB for an account on consoles (guess you can't do much about it on PC) and then give people an option to say "don't match me in games with people under the age of X". The 360 has an option that lets you choose what "community" you want to be part of, but it ignores it completely. If it actually worked, it should keep the twelve year olds playing with the twelve year olds. Not that half the racists and inane idiots aren't in their 20s and 30s, of course. . . :/