1) Most startup people are just evil
2) HN is heavily controlled by Russia
The latter is pretty obvious (we're talking English discussion platform where you can create account in ten seconds with no verification and I'm not sure if there's any anti-bot measures).
The former ... most programmers are rich and they are convinced they are rich because they are awesome instead of lucky. Most programmers aren't very social or have emotional intelligence. Most programmers think they are better than others and are prone to "fuck you, got mine" thinking. And look how many startups are based on doing extremely exploitative and illegal things - Uber with illegal cabs, Airbnb with illegal hotels, and so on. Of course those people don't give a shit about suffering.