No arguing is not allowed. Even when calm.
If you say anything that your team might could possibly consider toxic you can get in trouble. (chat restrictions, bans etc.)
The only way to avoid this is never say anything to your team. If they do something completely stupid and intentional calling them out on it can even get you in trouble.
there are a huge amount of players that create a macro that types /mute all as soon as they hit the button to which the macro is assigned.
There is no way to really avoid getting reported. Just dont give those reports anything at all to use against you.
funny thing, you can play like a complete asshole, you just can't talk like it.