How do you guys not know by now? do you not read the agreement when you hit accept? you should, it literally outlines everything considered bannable.
In your case, first you type too much, second if you have to tell the enemy team someone on your team is doing something wrong you will be at fault, dont flame a flamer, dont ask team to report that flamer, you just need one report to trigger a flag on someones account, third use the MUTE button the most basic function in the game, if someone flames you sure just read what they have to say for 7 lines and just mute after, dont evne use the chat yourself even if you dint swear you will keep typing and typing and end up with a ban.
Fourth , after your 14 day ban which you get before a perma, you shoulda been cautious not using chat AT ALL, or at minimum using the mute button to block dumb teamates.
So you did not know or do any of that, so you are and were rightfully perma banned.
Next time do your research and be more thoughtful in how you proceed with things, instead of letting sensitive thoughts and " oh he called me this and that".
so gg you caught the perma bro, stick around for new accounts or play another game 