> I don't think it violates someone's free speech[^1] to ban them or call them out for spewing slurs or hateful rhetoric towards minorities.

It certainly doesn't violate someone's legal rights, in fact stopping Bluesky would be infringing on theirs.

I think the xkcd link is mostly mincing words, though. I think it does violate the general philosophical principle of freedom of speech to kick people out of a public place for having unpopular or offensive views. As long as social media companies hold most of the cards for political discussion (and represent themselves as where political discussion happens) it feels disingenuous to pretend that they're like a private household, who can kick people out for any reason. They are not. They're not just private get-togethers among friends, they're where politics happens in our societies.