> Someone once said that SF is a town of extremely high sincerity, and all of its modern and historical weirdness

Not directly related to the piece but this explains so much. I’ve always seen it as high credulity. That is to say all lots of people are lying but lots of other people trust them. The missing part has been why would you take some of these people at face value. If there’s also a lot of sincere people it would then make sense that many would end up overly credulous.