To be fair, I don’t think Menino was campaigning against moderation, fact-checking, and constantly spreading hateful lies about vulnerable people all under the guise of free speech.
In his case reporting a random town politician died because it’s April 1 is not much of a joke. Publishing a bunch of outlandish lies about someone who themselves constantly lies is also not much of a joke, but it is an excellent use of satire and turnabout.