As always you raise a number of interesting points -
I do use reviews as a guide which is why I post reviews myself - I don't however post negative reviews because I don't feel it is fair to do so based on one visit - I believe that the absence of reviews is just as telling.
As to reciprocal reviews I am all in favour - the same rules should apply however and a client should be able to opt out if they so wish - escorts can then form their own opinion as the client. If such a system were available to escorts I would opt in, at the very least it would be interesting to read.