Sometimes the size doesn't really matter, maybe if you are working on a constrained space (embedded software, let's say). But if you are doing Web or using any

Sometimes the size doesn't really matter, maybe if you are working on a constrained space (embedded software, let's say). But if you are doing Web or using any modern language, unused code is usually optimized out of the compiled bundle and you don't care about it. We care much more about tested and battle proven behavior