Ban discusisons aren’t allowed on the forums. As you’ve mentioned your own penalty as the source of your problems.
If you have feedback about the game you’ll need to use the ingame suggestion panel or post it at a non-support forum as feedback is not collected here.
Then you would get people like you intentionally mistype “FC” like that instead of the full word to attempt and avoid penalties by arguing it is not on a banned words list. Even better, you yourself used this.
There is a swear words filter, this is not an excuse to bypass or use it but more meant to shield minors from offensive language by their parents. It is still against the game rules to use any inappropriate language as you’ve been informed before and during the game.
Weird that you would use offensive language directed at others if you don’t know what it means. Are you a minor perhaps that learnt the wrong words? I recommend having a sit down in that case with your parents on the why’s and the don’ts.
You have no right to abuse people anywhere.
I can confirm that you’ve intentionally harassed others and there is no issue with the penalty based on your own testimony.