The six thatchers literally opened with Mycroft saying that they can doctor any footage and present false information.
All the promotional gifs and pictures had either graffiti (miss me?) over them or were made to static/look like they were hacked.
They’ve broken the fourth wall, bringing these characters into the real world multiple times, e.g. the telegraph birth announcement, the blog etc.
And yet people think we’re pulling this information from thin fucking air?!?!