You’re right to dismiss Pizzagate as errant nonsense, because it is. I’d caution against viewing the intelligence agencies as impartial arbiters of truth, however. History has shown this view to be naive in the extreme. More: https://theintercept.com/2017/01/11/the-deep-state-goes-to-war-with-president-elect-using-unv…

False. There is no evidence for Pizzagate, circumstantial or otherwise. What its proponents imagine to be “evidence” is a bunch of little coincidences and unexplained language/phenomena—of which there are voluminous amounts in even the most inane and innocuous communications.