At the risk of going off-topic, 'partisan bickering and name-calling' are precisely what is protected by the First Amendment, and such activity bears no relationship at all to shouting 'fire!' in a crowded theatre.
I do not dispute for an instant that there was partisan bickering and name calling in the Denver thread. But your analogy fails completely, both on the ground given above and on the irrelevance of the First Amendment, which is designed to prevent the government interfering with a free press, and has effectively no bearing upon what the free press itself chooses to print (or broadcast), save statements than can lead immediately to actual harm as a result of panic or hysteria: hardly the case here...