To be honest, my working heuristic for over a decade now has been to assume that if someone openly admits to reading 4chan without any hesitation, caveats, or embarrassment, they can quite likely be lumped in with a general basket of deplorables.

Is it totally fair? No. Is it reasonably high probability? IMO, yes. Is there likely information value on 4chan that could be difficult to find elsewhere? Probably. Is it worth my time and aggravation to sort through it? No.