This is silly, people don't need AI to send you garbage. If your project is getting lots of junk reports, you should take it as a good sign, that people are looking at it a lot now. You don't remove the incentive, you ask for help to triage the junk.

Curl is a popular and well supported tool, if it needs help in this area, there will be a long line of competent people not volunteering their time and/or money. If you need help, get more help. don't use "AI slop" as an excuse to remove the one incentive people have to not sell exploits or just hoard them.