My experience is that good programmers prefer extra abstraction and bad programmers prefer extra repetition. Given that we need to work with bad programmers, so

My experience is that good programmers prefer extra abstraction and bad programmers prefer extra repetition. Given that we need to work with bad programmers, sometimes it makes sense to make things easier for them. But repetition is wrong and a source of bugs. Each time you give in and keep a repetition that you know it should not be there you are crippling yourself to make us programmers a commodity.