Conspiratorial content policy

E.g., in fiction, Twitter's "Conspiratorial content policy", perhaps more aptly named conspiracy-theory content policy:>You may not promote alternative historical viewpoints that have been found to lack basic evidential requirements and which target a particular social group in a harmful manner. This includes the use of hashtags and video content that contradicts this policy. 
>Conspiracies of note: Several prominent conspiracy theories that contradict our policy include: Holocaust Denial; The Q-Anon; The JFK Conspiracy; 'Pizzagate'; 'Spotlight'; Armenian Genocide Denial; The '9/11 Truth Conspiracy'; Anti-Vaccine Myths; and the Religion of Scientology.
See more generally: Policy; Censorship; Conspiracy-theory; Guidelines; Ethics.