Free speech doesn't mean the speaker is immune from criticism or social consequences. If I call you a bunch of offensive names here, I'll get downvoted for sure. The comment might be hidden from most. I might get shadowbanned or totally banned, too.
That was true of private spaces long before HN existed. If you're a jerk at a party, you might get thrown out. I'm sure that's been true as long as there have been parties.
The only thing "the SJW crowd" has changed is which words are now seen as offensive.
