Repetition also makes it harder to replace one thing in all instances but I agree that too much DRY can make a codebase a headache to wrap your head around: lo

Repetition also makes it harder to replace one thing in all instances but I agree that too much DRY can make a codebase a headache to wrap your head around: lots of different overloads for constructors and lots of branching inside the common code makes it hard and unpleasant to work with or ramp up as a new hire.