Ridiculing the value of documentation does not make you look smart.
It rather hints at lack of experience with truly complex systems or collaboration in teams.
The code referenced here is pretty extreme NOT providing the guidance, hence my response to the poster defending the extreme and ridiculing the good practice.
If you're keen on this style, perhaps you should pack all the socks, underwear and other objects in your home into identical boxes and put labels like "~" and "z" on them.
It's not an attitude I approve of in colleagues, for obvious reasons. Fortunately it's a long time since I've had to work with anyone that thinks that way. They don't survive in workplaces like mine.