I agree with Hildea. Books you don't like? For sure. Awful books? How do you know if you have only seen the cover? I agree with Catlady, too, that covers help in the majority of the books, to identify its genre (if they belog to someone, with everything it implies).
In any case, I'm old enough to feel that the discussion about half naked men in covers is at the same level that "was Heinlein fascist"?