Nothing really annoys me. But if I get a new book I don't like opening it fully to read it because it will wrinkle the spine.
But I get what you mean about the reviews, it seems like every book is the "#1 best seller" etc.
However physical books are making a comeback and sales have risen for the first time in years, whilst Kindles and e-books have fallen in sales:
http://www.telegraph.co.uk/news/2016...me-in-four-ye/