You essentially got it right. The Mediocrity Principle mean it's proper to put your users before yourself. From a code standpoint, it means you strive for "it

You essentially got it right. The Mediocrity Principle mean it's proper to put your users before yourself. From a code standpoint, it means you strive for "it just works", even if it means a lot of redundant code that doesn't match common expectations of best practices or adds a lot of "useless" work for the devs.