To answer the question about a Punter hiding their feedback, I would suggest that the girl has written something revealing of a personal nature and the punter feels that it might expose his identity or put other girls off seeing him.
I say this because one girl who visited me wrote really nice Feedback about me but from it I could recognise my location, probably others wouldn't. She also wrote something very flattering about my body parts, but I wasn't sure I agreed.
All my Feedback is Positive but I still considered hiding it and only after I gave it a lot of thought I decided not to in case this course of action looked dodgy.