First off- who is "they" here?
Second, I don't know what your initial ban was for off of poast or if that was a self-delete or whatever. I'm pretty sure the armstrong account got booted for the "epstein was based" debacle. You've had at least a handful of other accounts banned for doubling down on that take or similar ones. Every other ban I'm prrtty sure has been because of ban evasion. This stuff is usually spelled out pretty clearly when you sign up on these places, what is and isn't allowed, etc. The threat you pose isn't ideological, it's reputational- nobody wants to be hosting the guy who, intentionally or not, is most well known for his spirited defense of child sex trafficking.