As we've had a couple of these recently in the NW (and no doubt other areas), I wonder whether they should be kept in the review section and marked as 'Fake Review' and given a colour coding like other reviews - orange say, as a warning? The idea would be that they appear when you click on the link to find all the reviews for a girl. As it stands, clicking STS's link, this one would be missed and it contains valuable information.
Just a thought anyway and I have no idea how hard it would be for admin to set up.
tcm