We've been working to improve the experience of open source maintainers on GitHub. Now you can:
✅ Restrict pull request approvals and requested changes
✅ Block users on behalf of your org from the GitHub mobile app
https://github.blog/2021-11-01-github-keeps-getting-better-for-open-source-maintainers/

https://twitter.com/github/status/1455208013682388993