[crazygringo]

> But they disagree on which of those is "good design" in which context.

Which is why I literally said there are different schools of design.

> I'm not totally sure what this means but it sounds incredibly dubious to state as fact and there are no doubt heavily used fonts that don't do it.

If you don't know one of the most elemental rules of typography, then maybe you should look it up rather than doubt it.

> I'm not saying you can't or shouldn't learn the vocabulary and the body of accumulated experience, but there's no way you're going to make a universally right and objectively correct decision.

You're missing the distinction I made between basic principles of design, and schools of design. Nowhere did I claim that there are "correct" "decisions". But there are principles of design that are, in fact, universal.