Comment by tom_mellior

> especially when tagging spam "correctly" takes a non-insignificant amount of effort from the maintainers.

No kidding. GitHub requires you to wait several minutes (they don't say how much time exactly, but in my experience it's definitely > 2 min) between reporting something as spam. So you can't just go through your spam PRs in the morning and report them easily, you need to leave the browser tabs open and come back from time to time to submit spam reports. Not reporting is much easier, so the real figures are certainly higher.

EDIT: Ah, they don't even mean reporting spam to GitHub. Maintainers need to "opt in" to Hacktoberfest's own rules and change their own PR labeling system according to Hacktoberfest's wishes. What a pile of nonsense.