Why have /all chat?
What's the point of having /all chat if 50% of the time the enemy team is toxic? If you happen to retaliate (depending on what you say) it could get you reported. I know you have the option to mute players, but what if you're having a rough game and someone on the enemy team says something that just grinds your gears and you end up saying something reportable back. I know that the right thing to do is just ignore it and move on, but sometimes you just say something out of frustration.
Now let's say the thing you said resulted in you getting a suspension or worse. Did someone from Riot check out the situation? No. A bot detects you getting reported and looks for key words you said in the chat. It doesn't consider that perhaps other players were provoking you. How is it fair that the other players don't get punished? How is it fair that you don't get a fair trial?
So now you're suspended, okay let's go to support and try to plead your case. You send in a ticket trying to explain yourself. What do you get? A freaking Blitzcrank bot that tells you what you already know and treats you like a child. Why waste the money on a bot when after you get the bot reply you're just going to reply again asking for a human?
In conclusion, I think /all chat should just be removed when toxicity seems to be the one of the largest problems with the game/community. This is coming from a longtime player that is almost all of the time a very sportsmanlike that received a ban recently. I know I'm going to take a lot of heat for this (if anyone even responds to this post) and probably deserve some sort of punishment. It's just very frustrating that it's a rare occasion to play a game without 1 person being a dick.