I don't think I have ever seen someone on HN dismiss concerns about AI's impact on other people by saying it's good for them personally. I think you have a stereotype of a white guy with a cushy programmer job in your head, and you hear him saying this when other people of various races say other things.
I mean, just this week there was a popular post “My AI Skeptic Friends are all Nuts” that generated a ton of such discussion and dismissal. https://news.ycombinator.com/item?id=44163063
Oh my friend, you are visiting a different hn than a lot of us. I nearly got in a flame war yesterday with a noob and had to step back because of the density, caught my self being bated by a potential troll. Their argument was exactly what you’re claiming to have not seen.
To be fair I never stereotyped them even in my mind. But the audacity and dismissal of others was very bating.
I did my best but still a very poor job of arguing and had to step away.