I'm not convinced they are fully useless. Eg even an anti-vax person will understand that academic publishing has some solidness, even if they think it's'the es

I'm not convinced they are fully useless. Eg even an anti-vax person will understand that academic publishing has some solidness, even if they think it's'the establishment'. Explaining to a layman what arxiv does and how solid or not solid science on the site is is a lot more difficult.