I mean, I get that the tone might not be liked by everyone, but his work does raise some IMO valid concerns about the economics LLMs, which I don't see discussed around here very often. Then again, I get that AI has AI-friendly owners.

I agree with you, but until very recently it was super rare to see anything other than techno-optimism about LLMs on this site. I assume partially for the reason you bring up.

That's definitely not true, read the initial threads about GitHub Copilot and Stable Diffusion on HN.