I recently put my finger on what has been changing lately, especially after the assassination:

We used to say, that online speech, is not the same as in-person speech.

Online, you can yell horrible things, imply that somebody should "do something" about another person, but police showing up at your door is a tyranny, even if those same things on a street corner would've had you on involuntary commitment. Online, a developer might build an app that pulls off phishing scams, but they have the complete right to be anonymous. Meanwhile, the person cutting your hair, preparing your food, or even selling you flowers needs registration, if only for taxes. In person was a "real" threat, while online was just "venting," "trolling."

That's dying. Online is now the real world. With real world consequences.