All users of WritingServicesReviews.com have the opportunity to submit a testimonial about a writing service they have used. In order to leave a testimonial, one has to rate the service, comment on its quality and include an order number as a proof of having used this service (optional). In case the order number is submitted along with the testimonial, WritingServicesReviews.com has a responsibility to verify the testimonial by contacting the writing service and receiving their confirmation/denial, with regard to the existence of this order number. Therefore, such a testimonial can either stay unverified, or be verified if the webmaster confirms the authenticity of the order number.
Naturally, verified testimonials have a greater value and serve as the most reliable sources for our rating system. If the order number is not verified by the writing service, the testimonial isn't published and isn't considered by our rating system. If the order number isn't submitted along with the testimonial initially, the testimonial is published with an 'unverified' status, but is still considered by the rating system.
Thus, all the testimonials published on WritingServicesReviews.com can have one of two statuses:

'verified' (considered as reliable feedback)
or

'unverified' (cannot claim recognition as reliable feedback).