Below is just one of the many types of emails that are sent to our Minneapolis providers to encourage fake reviews.    
Heard some Providers are receiving emails like this

From: PR Services

Nowadays it is difficult to reach the top 20 even 10 scale of the review system and it is not because you don't deserve it its because the system is not perfect and those who know how to take advantage of it will. So why not you?
I have access to over 12 plus IP addresses and handlers in TER that can provide you with the quality reviews you deserve. We all know that just a single review will bring instant attention to your brand and so why not take that into your advantage?  

Unlike others that charge 100$+ for review my fee is 75$ per review.  
This is done completely discreet and even the most sought after ladies  
have reached out to me for some help in one way or another when it comes to managing their online reputation,
If this is something your interested in doing, do email me back so that we can get started by discussing your review preferences and what payment option works best for you
Best.  

Your PR service Guru

I thought that I have read about something similar in the past or recently

It isn't risk free for a provider to engage such services.  It's possible that the culprit could be discovered and that my cause troubles for those he reviewed.   It also opens them up to blackmail, probably for services or money.

I was thinking of the same thing. Many moons ago when the review system started there were a few “guys” that tried to tell providers that if they give him a freebie or discount, he would give them a glowing review…more money for her.  

I imagine that there were a few escorts that did that, but the next client or two found out that she was just a log on a bed

I’m sure this type of thing has always gone on small scale. I hope our providers can see thru it because if it got out of hand it has the potential to undermine ter to the point where it could collapse

At least that's how long ago remember first hearing about one.  Most likely they were around before that.  This sort of thing is one of the reasons why it is important to carefully examine the history of the reviewers of a provider who is new to you.

Awhile ago..  
alSo on my twitter too ... hopefully no one falls for this scam ....

P411 doesn't actually host reviews.  Whereas TER solicits reviews with grants of VIP access.  I am guessing the primary driver of fake reviews is to get temporary VIP access.   P411 also realizes that fake okays can be LE activity that can compromise the whole nature of their service.   But to make p411 viable, escorts in particular have to identify themselves to prevent them from making new accounts if they get in trouble with their first account.   Similarly clients have to ID themselves or be vouched for by at least two providers.  TER would have to undertake a similar approach to ID verification in order to enforce against fake reviews.

All that is required to establish a provider profile is an approved review.  You'd have far, far fewer reviewed providers if TER insisted that each provider be contacted in order to get a review up.