Earlier quoted context omitted.
This sounds more like an influx of scammers than security researchers leaning too hard on AI tools. The main problem is the bounty structure. And I don’t think these influx of low quality reports will go away, or even get any less aggressive as long as there is money to attract the scammers. Perhaps these bug bounty programs need to develop an automatic pass/fail tester of all submitted bug code, to ensure the report…
Simply charge a fee to submit a report. At 1% of the payment for low bounties it's perfectly valid. Maybe progressively scale that down a bit as the bounty goes up. But still for a $50k bounty you know is correct it's only $500.
But I do think established individual and institutes should have free access ; leave a choice between going through an identification process and paying the fee. If it's such a big problem that you REALLY need to do something ; otherwise just keep marking as spam.