Daniel Rensch and others have said that Magnus has not seen chesscom cheating algorithms or lists. It had been a rumor in the chess world for a while that Hans has cheated before
He hasn't been officially shown but that doesn't mean that someone in the know hasn't leaked it to him. He's deeply connected and respected in the chess world.
Further, even if he didn't see it people notice when GMs get bans as their accounts turn inactive (which they had in this case).
I'm not sure why you're implying that FIRE "despises" speech; perhaps you see them as conservative. That said, here's are some recent situations in which FIRE has taken the side of what would be under the general progressive/liberal umbrella:
I'm not sure what you're suggesting. This is the comment:
> FIRE has done way more for campus free speech issues this last decade or two ...
> You mean conservative speech? Or has FIRE actually defended speech they despised, like the ACLU used to?
It seems to imply that FIRE has done way more for conservative campus free speech issues. I supplied examples of times when FIRE supported non-conservative campus free speech. I'm not quite clear how else to read that comment, but would love your take.