Looking at some of these, I'm surprised I haven't been reported more 
Granted, I DID find one of me:
Ally: Why you not in team fight jax? we lose, jax sux
Perp: Because you were all half dead before I made it there?
Ally: you sux noob
Perp: I'm 18-2 with 4 towers.
Ally: you no team player, you need learn team work
Perp: wtf thus far I am the team
Ally: we losing now
Perp: Yeah, you're all standing in spawn because you're a premade
Ally: your fault, you suck
Perp: You're stupid, so we're even. I can get better.
Ally: You reported, you not communicate
Perp: You've all been speaking german, or danish, or some weird ******* language!
Ally: you learn new language, you stupid
Perp: North American server, I speak spanish and english... get off my server.
Ally: you report for racist too
Perp: Eh it isn't my fault you can't find the right server
Ally: we play whatever server we want
Perp: Obviously not, if that's what you call playing you need to uninstall and play Minecraft.
Ally: You make us lose, you banned now
Perp: Doubtful
Ally: Phreak is brother, me have you banned, call him
Perp: Dude, you're like, German or something... Phreak seems pretty american?
Ally: You banned, you watch.
Perp: Why didn't you play on the euro server? oh they are attacking our nexus now.
Ally: why you not helping?!?!?!?!???
Perp: Ahhhh because you suck. I want to watch you lose.
Found one of myself
Granted it got emailed to me via a friend.