"I say be clever enough not to aim at your foot in the first place."
Which suggests you practice these rules (or things with equivalent effect) unconsciously
These rules are not for you.
They are for the people who don't do so, who need to be told this is a bad idea, before they do it.
Of course whether they will bother to read these rules before they make an almighty clusterf**k (is core Windows still written in C++ ?) is another matter.