I'm torn between down voting this for being unnecessarily condescending and letting you feel safe to speak your mind on HN. Take my down vote with the knowledge it's OK to share you disagree or find the topic a nuisance of late, but you can be a little more thoughtful on how to voice that.
This seems like an example where someone takes unnecessary offense. I didn't feel any arrogance from the post. Perhaps a good portion of sources of fears of "psychological safety" is everyone is getting constantly told how they're a "nobody", without ever thinking that if it was so, then they already wouldn't be there.