The other odd thing about this particular case is that the book's topic seems to include this sort of scenario. Maybe people did read the book with the intentio

The other odd thing about this particular case is that the book's topic seems to include this sort of scenario. Maybe people did read the book with the intention of writing a review, and started wondering if this was some sort of twisted test. E.g. "If I read the book, and follow through with the agreement, will I be tallied among a group of weak individuals?" It seems that if you want to be able to draw conclusions about a social experiment like this, don't screw up the results by introducing a variable (the contents of the book itself) that could alter the results.