CTs are trolls of the worst kind. If Simon won't ban them we should all do what we do with trolls: Ignore them.
https://psychcentral.com/blog/archives/2017/10/05/the-psychology-of-conspiracy-theories-why-do-people-believe-them/
"People who believe in conspiracy theories can feel “special,” in a positive sense, because they may feel that they are more informed than others about important social and political events. […]
Our findings can also be connected to recent research demonstrating that individual narcissism, or a grandiose idea of the self, is positively related to belief in conspiracy theories. Interestingly, Cichocka et al. (2016) found that paranoid thought mediates the relationship between individual narcissism and conspiracy belief.
It has been noted that individuals who endorse conspiracy theories are likely to be higher in powerlessness, social isolation and anomia, which is broadly defined as a subjective disengagement from social norms.
Individuals who feel alienated may consequently reject conventional explanations of events, as they reject the legitimacy of the source of these explanations. Due to these individuals feeling alienated from their peers, they may also turn to conspiracist groups for a sense of belonging and community, or to marginalised subcultures in which conspiracy theories are potentially more rife.
People who feel powerless may also endorse conspiracy theories as they also help the individual avoid blame for their predicament. In this sense, conspiracy theories give a sense of meaning, security and control over an unpredictable and dangerous world. Finally, and most simply, conspiracy beliefs — which imply a level of Machiavellianism and power enacted by those without fixed morality — are most likely to resonate with people who feel powerless and believe that society lacks norms.
The Internet has amplified the abilities of these like-minded people to come together to share and expand on their conspiracy theories. It took only hours after the Las Vegas massacre for a conspiracy Facebook group to appear with more than 5,000 members.
You can’t really argue with people who believe in conspiracy theories, because their beliefs aren’t rational. Instead, they are often fear- or paranoia-based beliefs that, when confronted with contrarian factual evidence, will dismiss both the evidence and the messenger who brings it.2 That’s because conspiracy theories are driven by the people who believe and spread them and their own psychological makeup — not on the factual support or logical reasoning of the theory itself."