@gs5556
You said:
If a reviewer states that he was given or purchased the product at a discount then to me the manufacturer wrote the review.
I think that's a safe default position. But consider this, which I think is a common scenario:
I'm a reviewer. Company A sends me a product to be reviewed. Both parties expect the product to be returned once the review is finished. I write the review and it's glowing, extremely positive, because I really like the product, so much so that I would like to keep it in my reference system. I contact Company A and they say fine, you can have our standard industry accommodation, (say -40%) and it's yours to keep. The only stipulation is that you can't sell it for 12 months from the date of purchase.
I write the review, and I say the usual: I liked this product so much that I decided to buy it....blah blah.
Is that still considered a tainted, or 'paid for' review?