I quit working last summer for a little bit and had to quit. I was having issues with someone ( some of you may know what happened, some may not.. but I won't get into details ) But I asked for all my reviews to be removed as I was worried about my personal safety etc.. And they obliged and removed everything. This person has been dealt with (somewhat) I regret having my reviews removed as a large amount of them were really good.. But my personal safety is way more important to me than any review that I had.
Personally i don't think any reviews should be removed unless it is endangering a SP's safety or if the SP has a no review policy. Like someone mentioned above the way a girl responded to a negative review intrigued them more. Both positive and negative reviews can be a good thing..
Not every client is going to be happy or agree with other reviews written by other people. Everyone's experience is going to be different with every girl... it's all about chemistry etc..