Chaplinsky v. New Hampshire is a really good example. He used the phrase "You are a God-damned racketeer" and called someone "a damned Fascist." NH law says it's illegal to call anyone "by an offensive or derisive name" while they're in a public space. He was charged and fined. He appealed saying it violated his First Amendment rights. It went to the NH Supreme Court who basically told Chaplinsky no dice. There are lots of others.
So, sure, there are times a person can legally get away with it and times they cannot.
I don't think so. The amendment excludes "fighting words." That was the sole purpose of the man's words. If you can explain how his words were anything but "fighting words," I'd love to hear it.
Though there is a very legit debate that social media has made itself so pervasive and ingrained in the public dialogue that they should not be allowed to put limits on speech the same way a property owner could.
I used to be in the , their place, their rules camp. I have since changed opinion. I agree social.media gas became the new public square and shouldn't be able to.limit speech any more.