I've gotten tons of spam on repos that were purely ml research code. Things I saw copy pasted over hundreds of repos.

  > Maybe GitHub should temporarily block accounts from raising PRs if like 95%+ of them are getting rejected.

It's so bad I'd be okay with a lower bar where it's flagged if they're posting the same message over multiple repos... FFS they aren't even stopping this shit https://news.ycombinator.com/item?id=47964617