As a counter point to the author: * Half baked in-house implementations of things are often filled with bugs and broken edge cases. Especially when it comes to

As a counter point to the author: * Half baked in-house implementations of things are often filled with bugs and broken edge cases. Especially when it comes to security and concurrency. * In a larger code base, you won't understand everything whether it's in-house code or third party code. The in-house code was written by someone who quit 5 years ago and is now a monk in Tibet.