I think people don't object to making money as much as being underhanded about it (trying to bootstrap from zero to money while not making it clear you're currently at zero) and also using AI slop (or slop of any kind) to quickly generate content.

People would respect this more if it was content lovingly generated for years, and then the author went "hey, maybe I can promote this on HN?". But artificially promoting worthless, slop content, is going to generate this reaction.