There's a wide spectrum of folks with different opinions on everything here, but I wouldn't say there's some lean towards LLM-hate. I'm not a fan of AI projects, but I can live with the (frankly) very high proportion of AI content co-habitating on this site.
For that reason, I don't think the root post here should be flagged really. That might get reversed, I think there's a flag-count threshold that triggers it automatically. But thinking HN is actively against AI projects stands in preeeetty stark contrast to the front page of HN! It's highly likely that people consider the concept of this metaframework to be bad, and they clicked the flag button instead of not interacting/leaving a curious comment, which is generally the way HN works.
Saying that, you should make one! Hacker mindset and all. It wouldn't be for me, but you might find a less confrontational atmosphere in your own space.