I think it got started with Yud and Salamon thinking "I'm not sure about race and IQ, but this community lets us recruit people to fight Skynet," Siskind thinking "I'm not sure if Skynet is a danger but this community will let me spread the Truth about Black people," and Bostrom and MacAskill thinking "bednet EA is a bit lame but it will let us recruit people to conquer Death together." Then the people really interested in Ivermectin or COVID origins arrived and wanted to spread those ideas while slinging Rationalist jargon. And like El Sandifer predicted, most of them were not able to share their favourite brainworm without being infected by the others which were being passed around.