"Inconceivable!", Raves the Tiny Unimportant Blogger
I review for School Library Journal quite regularly (they keep sending me books, for some reason) and though the quality has taken a slight upturn as of late, I'm not above sending some poor author into the pits of I-hated-it hell. To the best of my knowledge, these negative reviews have never been selectively blurbed. "What is selective blurbishment?", you may ask (assuming, of course, that you think "blurbishment" is a word). A recent New York Times theater piece sums it up perfectly.
Of course, I've never actually picked up a book I disliked after writing its review. For all I know there's some pitiful soul out there meticulously reconstructing my heartfelt detestation of multiple badly written books.
Thanks to Critical Mass for the link.