There were many, many ads on myredbook posed by a person with no reviews, and the pictures in the ad were not the sex worker providing the service. It wouldn't be hard to sell someone on hooking up with a fictional 18 year old, then delivering a 17 year old who clearly isn't the person from the ad. Personally I avoided these ads, but only because I learned through trial and error that meeting sex workers with reviews was usually a better value.