[Macha]

In 2010? You'd be surprised before widespread adoption of git at how many places the process was individual developers committing changes unsupervised. I'm not sure we even disagree that's the problem - you feel a second person should have looked at it, I feel the process should require that. A code review might be something that they'd sit down with a selected piece of code that they felt was risky on a biweekly basis or something.

[godzillabrennus]

I’m 2010 access to prod over ftp:// might have still been a thing even at digg.

[biorach]

Forget code review. This is one of their most important endpoints. They had severe issues for 4 weeks. Did no one not even glance over the code and spot this glaring screw-up?