I have a very heavy handed approach to testing because I fuck up the details a lot. Testing keeps me from doing so by actively forcing me to look at the details

I have a very heavy handed approach to testing because I fuck up the details a lot. Testing keeps me from doing so by actively forcing me to look at the details. I make up for time "lost" writing tests by A) writing code just plain faster than my peers and B) in the time I save on regressions later. I think every person and team is different so no one model or ethos to testing will fit generically. Pinterest is doing well enough. If they don't need to automate, so be it. When they bring on some more engineers, the dynamic will change so maybe they'll need more automation then.