The issue here is that this forum is open to all comments, be they gushingly positive, neutral or not positive. An advertiser using this forum as a sole distribution point does not want perceived negative comments out to be seen in the open. You either restrict the comments and free speech to only positive of a product or allow all sides comment.
(I am not insinuating anything of the product that this thread represents, just the ability to comment sensibly on whatever the subject is)

