I would love it if this tool exposes job postings where the company has no intention of actually filling them, just trying to collect resumes. But does it do this?
There's also a "Report Job" button in place for flagging invalid job postings, which you could add a note with the reason for reporting.
However, there is a caveat, since this is community-driven so like another commenter mentioned, there could be bad actors. One way to solve that in the future is to have community moderators / some kind of verification.