I mean, why on earth would you not use existing infrastructure and always keep writing code from scratch ? If I see an engineer constantly do this, I would thi

I mean, why on earth would you not use existing infrastructure and always keep writing code from scratch ? If I see an engineer constantly do this, I would think that they are insecure and are constantly attempting to prove that they are "real" programmers (whatever that means). The way I see it, we are here to solve business problems and the chances of your problem being so unique that similar solutions don't already exist is rather low. Let's face it, the majority of software work is pluming work and wiring APIs these days. Very few people are tasked with implementing their own sorting algorithm and even if they are, you can bet that they will scaffold from another algorithm to get started.. Yes, one should not blindly copy and paste from Stackoverflow but researching, refactoring, thinking about the task at hand and using existing tools and libraries are all part of the process.