[d110af5ccf]

> lets them both think they're both correct and the other one is wrong, what exactly is the point of those principles

Guidelines can be useful even when subjective. Vitriolic disputes over whose (subjective) view is "correct" is an example of toxic behavior, not a problem with the guidelines being used to justify such behavior.

What would you think of someone who loudly insisted (without humor) that putting pineapple on pizza was wrong as a matter of principle? Is such expression in any way useful?