I lack basic empathy and reasoning skills
It doesn't effect me if someone else is wrongfully dealt a punishment more severe than reasonable for their crimes, so why should I care? I don't litter, and it's extremely easy to throw trash into the proper receptacle, so I think it's perfectly fine for litterers to get hard time or the death penalty.
And I really couldn't care less if rewards based on skill are closed off to players for unrelated use of the chat. I think anyone who calls people poopheads on the playground should get Fs in school. We don't want people getting accolades for the good things they've done if they're also kind of mean.
Who the hell cares if someone has in actuality been a great teammate, carrying games, timing their Lockets perfectly, assassinating high priority targets, focusing objectives when ahead-- if they also get verbally angry at people in ranked for going 0-10-0 as no-income-item Nidalee support or for intentionally stealing their level 1 jungle camps?
People who tell cheesy pirate jokes or say bear puns throughout the game should be banned too. Why should I have to mute someone I find annoying or upsetting just because there is a mute button that can completely remove the problem with no harm done to anyone? It's THEIR responsibility not to upset ME.