What a fun find!
It always strikes me how perceptive the rpg forefathers were. We complain about their early rules that were haphazard or vague but I am always impressed when I hear what they think about the game and it’s meaning.
These were pretty smart folks. They were/are just people but I am amazed at their grasp of things so early on.
Even in the 70s, (I know this was the 80s) their collected “game wisdom” and advice is admirable even with the hindsight of many new games, decades of hindsight and many new editions.
A pet peeve of mine is how people take it for granted as if “oh yeah I would have figured it out,” or “they should have known.”
Always reminded how much fun I have had in life because they got some typed pages to market!