There are good reasons to believe that most first reviews are fake. You might want to read the thread http://www.escort-ireland.com/boards...views-not.html.
Even so, I don't believe that ratting first reviews is a good idea. For one thing, it may put off a lot of genuine reviewers. If my first review had been ratted for no reason I might have decided not write any more. For another, I don't see how ratting first reviews gives the reader any new information. The number of reviews the reviewer has is already written at the top of the page.