This is why no one has faith in the behavior system anymore.
I was just playing Lee Sin jungle in normals, and before the game started I told my team I haven't played Lee Sin in a year. Anyways, 8 minutes or so into the game I'm 4-0 and have killed top 3 times and mid once. Bot lane has died 5 times to Vayne Janna as Lucian Taric. Lucian flames me from this point on until the end of the game about 30 minutes in, and constantly tells me to "kill myself," "shit jungler," "come bot come bot come bot," "useless jungle," while spamming pings the entire game every single time I die or any time I go back and buy while he's dead.
The only things I said were, Lucian the lane is lost she will just kill us all so I'm going to get other lanes fed, and stop being so aggressive and calm down. Everyone on the team was talking shit to him about how much of an asshole he was being, and how I was doing well.
My problem is this: if I said ONE SENTENCE back to him of the shit he was saying it me, I would be banned right now. After the game I know at least 3 people reported him, and I still have got no message of punishment and he is on to a new game. Why do you not ban people like this but the second someone retorts, they get banned instead?