Take away Permanent Ban
I do not believe a permanent ban is appropriate for toxic players. People who are toxic were originally people who loved the game but was soon conflicted by someone else's actions. To provide a better environment, Riot should permanently remove the chat option for those who can not prevent themselves from verbally abusing someone. Keep in mind that people do spend lots of money on this game, and banning their access to their account is rather unfair. Reports regarding trolling and afk should lead to permanent ban. But reports regarding toxicity should lead to permanent chat ban.