It seems especially ugly to see that here on HN. I grew up as the "a bit strange" person in a small midwestern town. It sucked. it wasn't until I got the fuck out and got into tech that I got to be around other nerdy, non-neurotypical people like myself that I finally felt like I could breathe.
If you have a complaint about somebody, fine, make it in clear and precise terms. But this scary-scary vagueness looks to me like standard-issue neurotypical bigotry.
It’s important when noticing instances of this to request further clarification.
It's similar to eg. why lgbtqia+ people have distinct memories about feeling unsafe in communities where "smear the queer" is a recess schoolyard game.
I'm not concerned about the woman in question. I'm concerned about everybody else who gets treated poorly because they're "a bit strange". And because of that, I'm concerned every time I hear that sort of "different equals scary" talk, as it normalized poor treatment of perfectly good people.
It sounds like you didn't know her very well and still judge her as dangerous.