Dealing With Certain Toxicity

Is there a system in place for dealing with players immediately for certain behaviors in the game, because if not I feel there needs to be. I was recently in a game where the player in question picked Ashe and was AFK in the fountain from the beginning. They didn't say anything or move but they were still there. When someone said something to them in anger, the only thing they said was "fuk you too %%%" and then they left. Now I can understand if someone doesn't get instabanned for an afk, but upon looking at their match history the last 2 games they had were 0/41/0 and 0/14/0. That means that not just in my game, but 2 other games players had to deal with similar game ruining behavior. A total of 12 players just from the games I looked at (including mine) had to suffer at least 20 minutes of their time to someone who has no interest in improving their behavior or even playing the game. I know that everyone in my lobby reported the Ashe, at least on my team and a few of the other team members but the fact that they can still play games til their account gets dealt with while acting like that is what bothers me most.