From what I know, bug bounties already have a spam problem. I definitely saw some devs in my circles complaining about people repeatedly sending garbage submissions in hopes of getting a payout.

What bug bounties also have is a big barrier to entry. You generally need to be at least marginally competent in software development, and do plenty of leg work, to make money with them. Turning regular crash reports into bug bounties removes that barrier, amplifying the spam problem.