One, I see some reviews as bragging.  I don't care what was shot where, and I don't need the critique of the review if it's too limited, too detailed, too whatever.  I appreciate greatly the information given here, and I pay for it, but I don't need the self affirmation that goes along with writing some of reviews.  

Second, I feel that I could only write positive reviews, not negative ones.  I have met many ladies that are deserving of a great reviews, and I would like to write one.  However, writing a negative review would be tough.  This is a YMMV business.  Maybe she was off that day, I was tired, or we didn't connect.   I don't need the negative implications of a lady scorned.  Those who live in glass houses shouldn't throw stones.

Third, if the details in a review were ever made public, either by a hack or some other reason, it is tough to deny a meeting if you self incriminate.  Can't be used against you in a court of law.  In the court of public opinion, or in an employers view, it's a bit different.