It very much is also a tool problem.

LLMs have been marketed for years, with great meadia fanfare, as being almost magical, something that can do the job of software engineers. Every week, the hype is driven further.

This matters. When people get told everyday that XYZ is magic, some will believe so, and use it as if it is magic.

I'm not sure I completely agree, I don't think it's that black and white, it's a similar analogy to Guns and gun violence.

Without the prevalence of guns there is simply less gun violence, but you could argue that it's also a human problem.

Giving people who have no business using an LLM to submit slop bug bounties is a problem of the tools accessibility. But also a human problem of course.

Edit: I should mention, I don't have a solution to the problem although I do like the other posters suggestion of a "deposit" scheme to submit a bug. I think that would incentives higher quality submissions.