[flohofwoe]

That's not "shitty code", just "simple code". Also regarding the last paragraph, IME the more senior you get the more you realize that writing code for hypothetical future requirements doesn't make much sense. I've seen this sort of enthusiastic overengineering much more often with junior peeps fresh out of university (including my younger self).

PS: It also seems the author is still early in the learning process, my advice: what you describe are all good programming practices, they're not just useful for the "learning phase", keep them!