It seems like the correct response for these "reimplementation" types of criticism is to encourage the person to do so and share the results. I have, for perso

It seems like the correct response for these "reimplementation" types of criticism is to encourage the person to do so and share the results. I have, for personal gratification, attempted (with varied success) to reimplement several utilities. The experiences were quite eye-opening, seeing how well designed the "standard" utilities are, and identifying new ways to improve my code.