It is great for those ''certain'' girls anyway. Take as example all the opt out profiles. If them girls wouldn't get business those profiles wouldn't be up, but there are plenty of them around.
The review system is not perfect, never will.
Another example. If a client falls for me and I decide not to meet him anymore, he can give me lots of bad reviews ( bitter) and when a mod will ask about a certain tattoo ( for example) he will know the answer. Mods will take him as genuine.
Some have to make money from anything I suppose.