Quite frankly, most people on HN are software devs with a wider interest in the world. HN’ers usually-ish comment when they have something insightful to sat, even if the insight is just a humble one.
But I dare to guess that most HN’ers did high school bio and that’s it, so it’s harder to even give a small thoughtful comment on it, so they refrain.
Case in point, I wouldn’t have commented either. But I feel at home here and notice some behavioral patterns. And compared to other fellow devs, I generally am more tuned to tune in on behavioral patterns because of having studied psychology.
But that’s just my take.