I agree. Nowadays, I systematically switch to dark mode on the websites I visit, if possible. Screens are becoming increasingly sophisticated, damaging our eyes, and HN isn't helping. I think they absolutely want to maintain their identity, but as a developer, I'm sure it wouldn't take too much effort to add a dark mode, given HN's simplistic design.

NetNewsWire is open source[1]. You can use a fork with your changes.

[1] https://github.com/Ranchero-Software/NetNewsWire