This can be summarized as "It's better to repeat yourself than use the wrong abstraction." It happens often in the attempt to be DRY we add a parameter or som

This can be summarized as "It's better to repeat yourself than use the wrong abstraction." It happens often in the attempt to be DRY we add a parameter or some condition to handle a new variation to what seems like a universal logical construct in the code. Do this enough times and the code is no longer comprehensible to any of the people who wrote each variation, let alone a newcommer. We mistake some commonalities with a universality. We become zealots.