JonI submitted a PR today with some missing files into a curriculum I worked on last year. After a license check, the PR was quickly moved to the "Ready to Merge" state.
Wait -- I submit a PR, and can merge it myself without review? In a public repo, owned by a bigger fish in this pond? No external verification requirements? Yeah, I don't think so...
I decided to ask for verification, and I'm glad I did - someone found a problem a few hours later.