Remove the mute option
I've decided to mute my team when I play normals to avoid toxicity and fights. I know that I am usually tempted to reply back when someone is being an ass and that is not good for me. In ranked I don't because I prefer to have all the tools I can for my team (or to know who should be reported and why).
The problem is that 4 of each 5 defeats I get reported for "refusing to communicate." I ping constantly. I interact with all the other tools I have and I still get reported for refusing to communicate. So if muting your team is a reportable cause, you should remove it.
Obviously I don't want you to remove it but I think this is getting really annoying.