I'm usually pretty good at spotting the scams, but I need a little help here.
I saw this review posted for AMANDA.  She has 7 reviews and they looked legit until I started reading all her reviews.  They all seem to be in the same voice (a female voice I'd guess).  Seven different reviewers but most had only 1 or 2 reviews and none more than 3.
The reviews start in April, until June.  So for this to be a scam, it is elaborate.  Of course she wants a deposit.
TER ID: 416630

Welp, it's a hard pass for me!

Sorry,  I didnt remember there was already a thread about this scam.
I saw a new review posted and started looking into her.
I have to say they are putting a lot of effort into this... new accounts, new reviews...
Its hard to imagine they get enough suckers to make it worthwhile.  
There must be more to it.

Probably a lot less work that you're thinking. Pretty easy to automate the account creation and posting reviews. Might seem like a lot for just one provider but if the provider isn't even real (assumption I'll make as I have not looked into this specific case) creating a bunch of ads on some cheap ad site (does listcrawler even charge?) is also pretty simple. They could be running something like this 100 times a month (different mix up the reviewers, different providers...) even 1% hit rate probably makes money. And once it's setup pretty much 0 costs to repeat.

Dont they have to pay for the fake accounts in order to post fake reviews?  
And the time... already been going on for 2+ months.  And the fake Amanda exchanged numerous e-mails with me until 'she' figured out I was not going to send a deposit.
And I havent seen any ads for her, other than the reviews themselves.  Where are they getting new suckers?
Have they even posted to the Buzz boards (not that I see).
I am sure there is more to this...

One does not have to pay for VIP in order to post a review.

Are you suggesting that the only source of clients, or suckers, here is from TER or that TER would be the only place they advertise?

 
As already answered, no it costs nothing monetarily to create an account on TER -- you basically just need an email and given the number or aliases most email services give to even the low end accounts it's probably on order of pennies for any group trying to run a scam as I would guess they would do. Reading the emails might take time but even there a smart player might get one of the local, open source LLMs and let it to the reading and responding.

 
I"m sure there is as much more to this as you want to imagine but don't really know what you're try to suggest. It's not all that complicates I don't think.