Chat Restriction or Chat Correction?
Players that have been "Chat Restricted" should still be able to communicate with their team, as communication is a MAJOR part of this game. I have a friend who was chat restricted (And then chat restricted a second time for failing to communicate with his team during his first sentence, I mean wut?) and even though it probably was deserved, he's a good player who tries his damnedest to help his team win.
This becomes a problem. If a baby starts to cry, putting a muzzle on it is not going to fix it. It's still crying, it's still going to behave and perform just like a baby, just quieter.
TL;DR: Instead, we should try to DOMESTICATE these players. Instead of removing their ability to chat, force them to type their sentences CORRECTLY and disallow misspellings and vulgar words.
It's like training a pack of dogs. Very vicious, toxic, uneducated dogs.