I never been asked by a prossie to do a review for her, and if asked I would find it disappointing. There's the 'slippery slope' and manipulation aspect to things, which I of course think is bad, but it would just annoy me in the sense of, wouldn't want my punt with a prossie to be about sitting around talking and thinking about such things. I mean, it's hardly a sexy or fun topic of conversation...
I have had on a few occasions girls trying to talk to me about UKP, UKE or reviews in a more general sense during punts, and basically I don't like it and always try to politely as possible move the conversation onto something else. I'm not there to worry about her online forum presence or perception, she can think about that when I'm gone. She should be focusing her energy on giving me a good, fun and satisfying time whilst I'm there. Don't get me wrong, I don't expect a prossie to be a mindless cypher that can completely which off parts of her mind during a punt, but to not be primarily focusing on pleasing me during a booking is to not be doing what I am paying her for.