I do not find running specials as an incentive for men on a budget to book me to be an effective way of growing my business and building repeat clientele, nor do I think that the reviews that would be written by men who are only into me enough to see me if I offer a discount would be effective for attracting my ideal clients. I'm a very niche provider (I keep my body hair & specialize in prostate orgasms), so my ideal clients are very enthusiastic about what I am offering and those clients will write me the best reviews.
That said, the vast majority of my clients do not like to write reviews. They are busy men, and writing reviews takes time. I want my reviews to be written by my favorite types of clients, so that they will attract like-minded men to me! The men who appreciate the things about me which I most enjoy sharing are the ones who I want to review me. For me, it's not about having a lot of reviews or having the highest scores (I know this site doesn't have scores but another one I belong to does), it's more about having reviews whose contents are reflective of what I enjoy offering!
Recently I started wishing I had more ECCIE reviews because most of mine are on TER, so I offered a special where if a client reviewed our meeting from my December 2014 tour, he would receive $50 off a future visit. It's like dallaswill said, his time is valuable too. I want my review writers to take the process seriously, put together a well thought-out review & understand that I appreciate the time they took to write about me. I want them to be people who would see me at my regular rate anyway, had fun, want to see me again, and are willing to spend some time writing about it. The future discount is my way of saying THANK YOU for the time & effort they put into their writing.
That type of review special, because it was motivated by a desire for new reviews and not by a need to attract discount shoppers, actually worked really well and I have four reviews from that tour that I think really add to my review profile in very specific & helpful ways! And the guys who wrote them have either already turned into regulars or expressed their intention to when they get the chance to see me again.
So yes I am definitely in the camp of: don't run specials to attract business & if you do run a review special (to attract reviews), definitely give the discount after the review has been written, that way you know the gentleman can afford your regular rate and you're getting reviewed by potential regulars, not one-off clients who are only seeing you because the price is right for the moment. Just my two cents though, and I'm sure different business models work for ladies with different priorities than me.