Not all issues or reportable offenses come in the form of direct and clear communication/language, e.g., emote or auto translate spamming can still fall under this. Also, the profanity filter does not, nor should it preclude or validate the use of profanities. People shouldn't really need to jump through xyz hoops just because some people feel the need to try and validate or normalize inappropriate behavior. This is how your opening paragraph comes across to me.
It is very very rare you would get banned for no actual reason at all. Most especially in the circumstance where a dispute has resulted in no change in penalty, and when the penalty ultimately results in a 10/20-d suspension
Also, if you need any specific information on the ban you would more than likely need to submit what is referred to as a DSAR request, in more often than not cases they are required to provide the information if it relates to you. My guess is GMs just don't have the remit to disclose that information regardless of how much prying is done.
It is pointless to ask for a list of what language you can and cannot use. Yes, the examples listed in the 'prohibited behavior' are not necessarily the clearest, but if you're specific you then run the issue that people will just try to evade by skirting around it, as opposed to trying to take the 'spirit' of it. They'd be there for days giving people a list of what constitutes prohibited behavior/language. The best you can do is read the appropriate guidelines, and be more concerned with the 'spirit' of the message than the examples themselves.
