Maintainers Don’t Scale

At least for me, review isn’t just about ensuring good code quality, but also about diffusing knowledge and improving understanding. At first there’s maybe one person, the author (and that’s not a given), understanding the code. After good review there should be at least two people who fully understand it, including corner cases. And that’s also why I think that group maintainership is the only way to run any project with more than one regular contributor.

http://blog.ffwll.ch/2017/01/maintainers-dont-scale.h