That is a losing battle.
Even if you manage to make bot usage more expensive, which is all a captcha can do, the content posted by humans in discussions and shared links is increasingly generated by machines.
It's ironic having a community of people object to the same technology they helped build. Enjoy the show, and learn to live with it. It's going to get much worse before it gets any better, if at all.
> "they helped build"
The overwhelming majority of developers have never worked anywhere close to LLM tech. AI is a very small field requiring specialized expertise.
I agree, having never worked on AI or anything privacy invasive for that matter. HN is not a monolith.