https://www.splcenter.org/fighting-hate/extremist-files/indi...
It's got nothing to do with echo chambers. The response to his memo might have been a little overblown, but anyone who associates with someone like Molyneux makes quite clear where they stand.
>makes me wonder if that's the sort of people HN is attracting?
I'm not sure about HN, but there's a pretty large subculture of hyper-reactionary stuff in tech around Curtis Yarvin, Thiel, and so on that's been seeping into mainstream communities for ages.