I got a 25 game chat restriction for trying to defend someone from harrassment. I have been falsely reported 2 out of the past 5 chat-restricted games, when I'm silent. People know they can abuse your report system, and they're doing it dishonestly whenever they're mad. I shouldn't get a bad behavior screen when I'm keeping my mouth shut all game.
I already got chat-restricted on a game I didn't deserve punishment for. I have no faith that you can detect the false-positive reports from the positive reports for bad behavior.