Are you a spine breaker? Or a dog-earer? Do you expect to keep your books in pristine condition even after you have read them? Does watching other readers bend the cover all the way round make you flinch or squeal in pain?
My answer: I am definitely NOT a dog-earer! I used to be, when I was young, but I quickly grew dissatisfied with the condition of my books. I always use bookmarks, even on cheap paperbacks. I do tend to break the spines of my books a little bit. I don’t think there’s anything wrong with making your book look as though it’s been read. When I look at a book that I’ve read many times, with multiple spine breaks, it reminds me of how much I enjoyed it.
Covers are a different thing, though. I try, though I don’t always succeed, to keep my covers in perfect shape. When a cover gets torn, cracked, or badly bent, it drives me insane! I don’t just like to read my books…I like to look at them!