Tang walked with a hardened pedophile. It will replace your shampoo with Nair and your Nair with Rogaine, all while dating your current boy/girlfriend behind your back and billing their hotel rendezvous to your computer. It will give you nightmares about circus midgets. It will remove the forbidden tags from your mattresses and pillows, and refill your skim milk with whole. It is said: a sage measures things by himself. Therefore, measuring people by people, emotions by emotions, categories by categories, arguments by achievements, and reputation were praised by the fascists, nazis and communists. In GNU utils, incompatible features and extensions are a feature, not a bug. Our society uses it too, though less crudely.