I love to get reviews posted on Goodreads and Amazon on my books, because then I know people actually read them. I'm always eager to know what people actually thought about them.
The first bad review I got really hurt. In fact, I got several early on with Uncut Diamonds. Ouch, ouch and ouch. They don't bother me now. In fact, sometimes I like to just go and look at them again: "hated it." "losey book." They make me smile. I think it's funny that someone found my book so horrible and even funnier that they felt such strong enough emotions to go to the trouble to post their two-word negative response.
I could spend hours scanning reviews on Goodreads and Amazon. Not on my books. I don't have enough of them to take hours, minutes maybe. I just like to read reviews. Some are gushing wonders, others horrible slams-- all for the same book!
One thing it shows is that there a whole lot of readers out there and they don't all like the same thing. It also shows that the more people are reading a certain book, the more reviews it will get of both good and bad variety.
Writers love getting reviews, especially glowing, five-star reviews. One of the very best ways to love an author is to post a review!