[DiscourseFan]

You are overvaluing “clean code.” Code is code, it either works within spec or it doesn’t; or, it does but there are errors, more or less catastrophic, waiting to show themselves at any moment. But even in that latter case, no single individual can know for certain, no matter how much work they put in, that their code is perfect. But they can know its useable, and someone else can check to make sure it doesn’t blow something else up, and that is the most important thing.