It is also generally recognized that there is such a thing as dangerous speech but I don't think we even need to start including that category of speech to hit a contradiction - that said we can and should strive to allow as much freedom in expression as possible.
What people are nostalgic for is the ability to have semi-anonymous semi-ephemeral speech.
For example: The ability to have a private conversation in public without fear someone is recording you and can easily use that recording to identify you.
And while that is all horrible, I have played Dungeons and Dragons my entire life without persecution and none of the bands I listen to who are the same age as me have been harassed by the government. Not something I can say about the lates 80s and 90s from my understanding of it. (I am referring to the DnD panic and the legal harassment that destroyed the Dead Kennedys among other bands who the Govt pursued)
The dog doesn't either. Cats, an empty room, same story.
Add anotger human to the equation, and my, how circumstances change.