I don't get this post and I don't get all the comments in support of copy pasting code, and against DRY. I am going to need a real life example of when copy pas

I don't get this post and I don't get all the comments in support of copy pasting code, and against DRY. I am going to need a real life example of when copy pasting is a good idea, because I've never seen it. Giving some 'shared code' a name really doesn't seem like it's a dangerous path. Programmer B feels honor-bound to retain the existing abstraction, but since isn't exactly the same for every case, they alter the code to take a parameter, and then add logic to conditionally do the right thing based on the value of that parameter. Programmer B's poor decision doesn't mean you should reach for ctrl-v, in my humble opinion. But I'm willing to change my mind, if there's a compelling case.