However the law has to put boundaries on free speech, because it can easily infringe on someone else's basic rights, so there is no such thing as completely free speech in practice. Even within the circle of your best friends, there would be limits to what you can say, wouldn't there?
I do believe we agree. I'm merely trying to be precise in my use of words like censorship, lest they become meaningless.
False. Censorship can and does happen at the twitter/facebook/youtube/reddit/wikipedia level all the time. It's the main reason there are alternatives to all of them. They tend to call it "content moderation" but that's just newspeak for censorship. Real content moderation would be limited to spam removal and child porn. What all the big tech companies do is censorship.
It is not something we technically have here on HN or on twitter or in other such places.
Most governments that claim to value the concept of free speech usually have it said somewhere in their governing documents that the government will honor this concept.