I don't care about "sportsmanship" and I never will
If i want to tell my teammates off, then I should be able to. Stop trying to micro manage human behavior. People are always going to be set off when their personal rank depends on 4 strangers.
I don't care how young some people might be on this game. You aren't protecting them with these reports. We ALREADY said the bad words and their virgin eyes read it. What are you stopping here? NOTHING.
As for the adults who get upset because someone yells at them, tough fucking shit. Grow some thicker skin and don't give me god damn attitude because you want me to "be nice" when I type something, as if its not important to type quickly as possible to get back to focusing on the game.
Instead of trying to strong arm peoples behavior, reward good behavior. Forget the god damn chat restrictions and other little hings you guys do. If someone goes a certain amount of games with no negative reports and a lot of good feed back, you should let people earn bonuses in terms of IP and a higher change of getting their primary position.
So in closing, Riot, get off your high horse and stop thinking you can manage human behavior. How arrogant and short sighted. Amazing that you guys had as much success as you have.