The thing that catches my attention in Lina Review is that it aims to create a review platform built on trust and reputation meaning the reviews will be based on quality of the reviews, quality in the sense that we can be sure that the reviews are honest and reliable and not just so-so reviews and full of bluffs and misleading?
Based on what I read the reason they create this lina.review project is to give us honest and reliable review in this way it prevents misleading reviews from other sites. I believe they will make ways to stand to thier claim.
Do you believe that paid review is reliable? I believe in clients/users who are angry and disappointed over a certain product or service who give negative reviews.

. They would sometimes curse the services or the products/company for giving them a bad service or products.

I think they can be reliable if the reason they are paid it to create honest/transparent review. Lina will be the one to set rules to their helpers so they will get the honest review.
In short they are paying for review? Did you find the logic?
Imagine that I will give you money just to give feedback to a certain service, are you sure that you will give feedback based on your experienced or based on what will be your benefits? Practical people always find the easiest way and that is giving a positive review because they are satisfied in the payment of the review and not at the service.
Yes, it is good to see that lina will give some merits for the customers review but I am hoping that what will be the feedback of the clients are true and not be based on the incentives they will get from their review.