There is something really odd about the feedback given on the reviews of this book - there are so many "not helpful" votes for so many of the reviews! Anybody have any idea why that might be? It makes me wonder if one or more individuals are running a smear campaign against reviews of this book. But why? I've read over some of the reviews that got lots of "not helpful" votes, and they're just normal, mostly informative reviews and reader feedback. I am puzzled.