> But also sometimes it makes more sense to copy and paste over trying to fit an abstraction where it shouldn't be. :)

I find that's a smell of limited languages: Maybe a language has poor error handling semantics, maybe it's not expressive enough to make a parameter generic.

It can also be a smell of not understanding the language well enough, too. Maybe there is no need to copy and paste, but the programmer didn't understand the language well enough to make a generic abstraction.