IIRC he said he wrote the book to get people to experience nature.
I believe he was vastly confused about his motive for writing the book and the motive of the people reading the book.
I doubt anyone who read this book and looked for the treasure enjoyed the experience. Nature was in fact their obstacle if not their enemy.
I'll bet most people who went out to search never stopped to appreciate nature. Most likely cursed nature.
Most likely. Because they would associate nature, with their difficulty in the search and not finding the treasure.