So, why do great authors blurb terrible books?
A few things come to mind:
1) The turd's creator (TC) is a close friend.
2) The TC has an editor or an agent in common with the blurber.
3) The blurb was sincere, but your favorite writer... does not share your taste in books.
Oh, I know that last one may seem a tad controversial-
--Controversial? The word you're looking for, is 'impossible'! I've read all the books of Ann M. Finn*. There's a real connection between us. Every page, every word of "The Pimple-Squeezers of Ancient Zod", is about me! Me!
All right, calm down, please. So, more than likely I'm wrong about number 3 up there. But it's not important anyway. My own personal rule -- an easy one to keep since I've only ever been asked to blurb twice in my life so far, is to tell the truth. As a reader, however, I discount blurbs completely, preferring to rely on reports from people whose taste I do share: reviewers; friends etc.
What about you? Have you ever been fooled by a blurb? Have you ever made an excellent choice as a result of one?
*Just in case there's a real Ann M. Finn out there, I want you to know that your name means something in Irish, but nothing rude.