Riot may be able to learn things from this topic in a different forum.
I'm Surprised We Retain Newcomers - d2jsp Topic
So Riot has been cracking down on 'toxicity' in general, but is that really the right discourse? There are many who are toxic yet carry games, and even give good advice while they are being toxic. The true ones that deserve to be punished are those who are toxic and troll, making it hard or impossible to win the game through intentional feeding or trolling (this may actually be the 1-2% that Riot claims to be the toxic community).
There was a place to put a link but I'm not sure if you guys will be able to click it.... so I'll post it here too.