It's a good point about false facts - many years ago I asked Amazon to take down a review which had downright untrue statements in - they did straight away, so then the person put the same review up, but also complaining about it being taken down. It didn't really achieve anything. I'd also agree about not reading them - I hardly ever read reviews on Amazon/Goodreads, and certainly wouldn't respond, though I do usually read newspaper/respected blog reviews, if only to look for good pull quotes for the publisher to use on future editions and for me to put on my website.