Players are toxic because
Players who become angry during matches do so because they know the players around them will never get punished for there poor playing or the way they are trolling is untraceable. Some players troll in the before and after chat, and it effects the outcome of the game dramatically. For instance, before a game starts players will cause the team to fight, making it hard to work as a team. There is no way to prove this. A game i was just in, I was going about the game it was 3/13 with me only having any kills. I had no problem until i start watching the top lane. The sion would ult while standing in front of a wall. He did this several times. I asked him if he was new to sion. He says yes I am... this player will not get in trouble for this but in ranked I believe he shouldn't pick things he has never played.
My thoughts to reduce players anger and stress levels in ranked Qs would be to implement a system. First we have to beable to report trolls in team select. Second, we need a way to punish players for making others pay for there poor playing. Add a button that at the end of game you can check. If 80% of the people playing in that game check it that player would get a mark. People with a lot of these marks would get put into the same group and would end up getting what they deserve people like them to play with.
I think this system would help ranked play because it would be more about skill rather than who gets the troll or bad player who somehow got into your game. Trying to help players mid game to improve makes them get angry at you for pointing out mistakes and I don't think that will improve peoples game play since it turns into a argument 99% of the time. If anyone has a system they think might work to address players doing things the tribunal will not punish but is obvious to players in game post here. Also why isn't there a before and after game tribunal?