Relative to almost all other sources (Twitter, the news, books), I have personally found the Hacker News comment sections to have extremely high signal-to-noise

Relative to almost all other sources (Twitter, the news, books), I have personally found the Hacker News comment sections to have extremely high signal-to-noise. I learn a ton here almost everyday. Of course, that is not to say there is not a lot of noise; rather, there is even more elsewhere!