THE Group for Authors! discussion

Why do people just leave book ratings instead of having the decency to write a review—especially when they haven't even read the book or purchased it? This should not be allowed, considering the time and effort that go into writing, professional editing, cover design, and everything else involved in publishing. I think this is very disingenuous. If someone has actually read the book and it’s not their cup of tea, then at least they should say something. But just rating a book without having read it is simply bad manners.