In Programming, DRY sometimes requires meta-programming or introspection. This is something which people sometimes don't want to do by intention (for instance b

In Programming, DRY sometimes requires meta-programming or introspection. This is something which people sometimes don't want to do by intention (for instance because there was some common decision in a group not to use a preprocessor language or code generation). However, I have seen so many weird examples of repetition just because programmers were not aware of the features offered by the programming language they were using. Repetition is usually a sign of somebody not thinking hard enough or not caring about good quality, maintability, readability, etc.