>>411687694
I'm interested in infrastructure planning and city design, and /vst/ is basically my main board right now, though /a/ is my home board - and I know plenty of people are into engineering in /vrg/. And we have a train turboautist.
What I'm saying is, you are more likely than not going to find people who share at least some of your interests, and you can just stick to those.

I think it's more useful to treat people on an individual basis, rather than condemning whole groups on what more often than not are problems of a vocal minority. 
Problems you won't be save from by only meeting random people either, mind you: Wherever social relations are, no matter how fleeting, problems will crop up. Wanting to be spared from social problems is a fool's errand for anyone but the hermit.