The law isn’t code. It doesn’t require formal definition of all boundaries.

https://en.wikipedia.org/wiki/I_know_it_when_I_see_it

Then people will carve around the edges. Also do you need to moderate every single post or comment by anyone? That's not free also.

Speech is already not entirely free and it works fine. You can’t scream “murder all the X” in a theatre. It doesn’t break the concept of freedom to have regulations, and assuming nothing can be regulated just leads to governance by corporation.

> You can’t scream “murder all the X” in a theatre

You actually can.

Without consequences? Where?

[Edit:] Oh you’re quite right. In the USA that’s legal sometimes. Where I live that would be seen - reasonably enough to us - as a call to violence.

It can be worked out. It does not need to be perfect. I see no need to start an endless discussion on it here.