Comment by MattPalmer1086

I don't dispute they are massively used and important communication tools. The analogy to a public square is deeply flawed though.

A public space is not a broadcast medium. If I don't want to hear the crazy person shouting, I just have to walk a short distance away. The people who are presented to me are not chosen by some algorithm under the control of the space's owner. I can largely control my interaction with others. If someone is being threatening to others in a public space, then the police will arrest them, and nobody would call that censorship.