You still haven't explained how pointing out 5 factual errors in the first 4% of the book is actually in bad form. This in particular: "it takes an inordinate

You still haven't explained how pointing out 5 factual errors in the first 4% of the book is actually in bad form. This in particular: "it takes an inordinate amount of time to respond to the criticism" Ain't it. If you are going to present yourself as an authority on a segment of human knowledge, then you should necessarily EXPECT to receive challenge when you haven't actually done your own homework. Nobody who writes a book while acting as an authority should be incapable of showing their work.