You are not respecting my request for disengagement if you keep talking about me.He didn't present it as a matter of preference, he presented it as illogical/wrong for the information to be there. He just never expanded it out into a rational argument with actual reasoning. I don't see any "Well it may well help some people but I have no use for it" or similar equivocation that would back up your reading. Rather he ALL CAPS says it has NO PLACE in RPG books. That's an extremely strong/bold statement that doesn't sound like mere preference to me.
Also I'm not presenting my opinion as purely preference. I'm suggesting it literally makes sense, and is correct, for a book purporting to be advice for Dungeon Masters to contain advice on how to manage/run an RPG group which might not relate solely or strictly to rules. I don't think that's "preference", I think that's basic logic. And it's easy to see that the overwhelming majority of RPGs do indeed have that sort of information. I've presented an actual argument and can back it up, and it's pretty straightforward. I think it's actually a bad idea for RPGs to not contain advice of this type, in fact, but that's been rare for a very long time.
Also, nobody here is forcing anything on anyone. It's all a matter of opinions and point of view. Always.