In short, the comment implied that the First Amendment has an absolute and total protection of speech as a way of saying my larger point is ridiculous.

But speech doesn't enjoy total protection, even in the U.S. And most people would identify some category of thing that they simply wouldn't let people say about another, whether it's stuff like personal and private IM/emails, information useful for identity theft, financial information, etc.

Almost everyone has something that they would say the First Amendment doesn't protect. So now the question people should ask themselves is what kind of other speech would they say warrants no protection? They've already agreed to prostitute their absolute protection of speech, now they need only negotiate on the 'cost'.