Leftists seem to have a lot of time on their hands. We have previously discussed The Occupy Amazon movement. The trolls hop around from politically incorrect author to politically incorrect book and leave 1-Star reviews.
Usually, they do not read the book in question. You won't see point by point refutations. How can the troll do that if he does not even possess the book? Instead, you see a lot of one or two sentence blurbs. They might not have read the book in question (although Amazon has a purchase verification tab and these are supposedly buyers) they can write a terse condemnation. Their brevity gives them away.
For John Tamny's