I'd just like to say, "Calm down. It's a book, not the end of the world."
There are some books that some of us are going to say are pretty much the worst thing that ever hit the shelves, but for others that book will change their lives or bring them back into reading for pleasure again. By dissing books we don't like, we're dissing ourselves.
They follow this system:
2. Form Opinion
3. Recommend to Others
Simple, right? Those three steps aren't going to change even if the reviewer really doesn't like the book. I believe there are elements in every book that we can find that other people would enjoy or that we can learn from.
Exhibit A: Twilight
My Opinion: eh, interesting storyline, little intense on romance, way too many adverbs, slightly pathetic/annoying main character, overall alright.
Recommendation: Teenage girls, fun weekend read when you're bored
There are thousands of books out there. Not all of them are going to be classics or connect with you but that doesn't mean they're bad for everyone. Tolerance my friends, tolerance.
Also, wish my writing buddy, Marin, a happy 21st birthday! Couldn't do it without you, girl!