Didn't Daniel later report that curl recently started getting mostly high-quality LLM reports on their bounty program? I can imagine that there would definitely be a few "bounty spammers" trying to get hits, but it seems like most of them are doing good work.

I'd say instead that the problem is that a lot of people don't care anymore about the quality of the work being done, and LLMs are accelerating it. Bounty programs have shifted from ways for people to report security bugs to ways for people to try to make money.