Yes - but my point is, you're 'having to re-write' that function is not an existential problem for the product or company. It's just a shitty piece of work. An

Yes - but my point is, you're 'having to re-write' that function is not an existential problem for the product or company. It's just a shitty piece of work. Any individually poorly written but well encapsulated piece of shit is just a 'bathroom clean' away from being nice. Contrast that with bad design, bad APIs, or other things: they mess up other things. They can even create massive, ugly dependencies, and massively increase complexity, bugs etc. etc.. I've seen build-chains that involved 6 different scripting languages. Because we all had to use it, and almost nobody knew all 6 languages, it f*ed the whole company and caused huge pain.