Side point, but you'll find plenty of anti semitism on HN in the Israel articles that have many comments - it comes in the form of conspiracy comments that people reply with, that use mossad, pedophilia, Netanyahu and the US in the same sentence. Any replies calling it out become greyed from downvotes.

It's just not viewed as anti-Semitism, probably in the same way that the posts on X aren't viewed as far-right or extremist.

Extremists usually don't experience their views as extreme, but as rational and important.