I reject the thesis of this comment: moderation is not the same as censorship. If I host a private party and eject someone for being unpleasant, I am not practi

I reject the thesis of this comment: moderation is not the same as censorship. If I host a private party and eject someone for being unpleasant, I am not practicing censorship. How is moderation on HN (or any other private platform) qualitatively different?