Whenever some regulation comes along, the Twitter libertarian push -- Phelps, James Morrow and the like -- go into their peanut gallery chorus. "Nanny state!" "Nanny state!" "Free minds, free markets!" Blah, blah.
This is a position which can only be held by ignoring what has been going on in the UK under Tory governments for the last eight years: the uninterrupted extension of police powers over speech.