You are comparing apples with oranges. Books are not food, and there is no reason for them to despawn. Judging by the rarity of bookstores, books, and the amount of the new books you are adding, it is unlikely that everyone would have all books in a couple of days. Also books are not the only reason to loot, so your argument goes poof.
I guess the part with godmode and credits is just the friendly way you treat your customers by making a suggestion sound trivial and stupid. Thank you for your kind consideration.