What are you talking about? HN was a site for people aspiring to BE the rich, in the sense that it was operated by and revolves around a startup accelerator.

> HN crowd used to hate the rich.

I don't know where you heard this, but it is not true. HN is filled with people with many opinions about the rich, and also many rich people, and has always been.

Startup News, created by a founder of the venture capital incubator Y Combinator, did not ever uniformly hate the rich. It is sponsored by the extremely rich, and only exists because they wished it into existence and maintain it.