This has been one of my biggest issues when people write illegible but supposedly lightning quick code. The biggest bottle-neck in software isn't language quirk

This has been one of my biggest issues when people write illegible but supposedly lightning quick code. The biggest bottle-neck in software isn't language quirks, but the person reading your code when it breaks. Also, when Google or whoever decides to update the engine and compiles things differently, these hacks might become less efficient than just following best practices.