Comment by JoshTriplett

Which means we need to substantially raise the cost for negative responses, to the point that a few negative responses completely outweighs any potential benefit from positive ones.

https://docs.github.com/en/site-policy/github-terms/github-t...

> You may not use the API to download data or Content from GitHub for spamming purposes

Report each instance of spam to GitHub, and hopefully they'll terminate the account.