Another quick idea. Low-carb advocacy groups (like WAPF and the Atkins foundation for example) must also have a devil's advocate. After all, anybody can be wrong. But, if all they got is a book, then they're exempt from this obligation, since they're now petty salesmen. So for example, if WAPF or Atkins only had the diet books or even the book from Price himself (Nutrition and Physical Degeneration), they wouldn't need a devil's advocate, and could continue to promote those books freely as any other opportunistic vendor could.

I'm not arguing fairness, I'm arguing human error.