The fake books in the OP article are all used in garbage NFT scams. They're intended to produce an air of legitimacy for whoever publishes them. Whether they're actually sold or not is meaningless. It's rather all about clickbaitability and their use as a "legitimacy-dressing" surrounding some scammers' call-to-action button.

I think it is somewhat scary that these things can't just be instantly pulled from wherever they're marketed. They're just "tools-of-the-trade" for scammers. They serve no honest purpose.