I think this is the heart of the issue and it boils off all of the unimportant details.
If it's a real, serious issue, you want to know about it and you want to fix it. Regardless of who reports it.
If it's a real, but unimportant issue, you probably at least want to track it, but aren't worried about disclosure. Regardless of who reports it.
If it's invalid, or AI slop, you probably just want to close/ignore it. Regardless of who reports it.
It seems entirely irrelevant who is reporting these issues. As a software project, ultimately you make the judgment call about what bugs you fix and what ones you don't.
[0] More or less. It seems the actual language is shied from. Is there a meaningful difference?
Most vulnerabilities never get CVEs even when they’re patched.
The way many (perhaps most) people think of CVEs is badly broken. The CVE system is deeply unreliable, resulting in CVEs being issued for things that are neither bugs nor vulnerabilities while at the same time most things that probably should have CVEs assigned do not have them. Not to even mention the ridiculous mess that is CVSS.
I’m just ranting though. You know all this, almost certainly much better than me.