He and his wife are a bunch of weirdos, he is into some spiritual stuff. But even if they weren't, half the people here are not vaccinated. As to why he personally doesn't want to I can't say, I don't know him. He probably had the virus and was asymptomatic, so he doesn't get anything from it.
As I said a little under 50% are vaccinated, as to following general advice, from what I saw more do then don't.