How fucking fair.
Viewing post in where to write an appeal for discord
I mean realistically, it doesn't need to be fair. You said yourself that you thought you might get in trouble for sharing the story but you did anyway. And you're also being really vague about what actually happened. You dont need to specifically say "xyz is my political belief", just saying you were at a rally is enough to devolve a server into a cesspit.
Rough English aside, they haven't explained anything. If they explained why they were banned then maybe they could get someone to actually listen to them. But if they were banned for, say, having something racist in their username or something like that, then it'd be silly to try to garner sympathy over that and would explain why they refuse to say what they got banned for.