We actively reject this as well as blackmail. If someone wishes to post a review, of any kind, their business, we are not offering anything in return, nor are we shutting down services for this.
I think it is not OK at any level to offer incentives for reviews or cave in to blackmail, this is supposed to be about the service, not about perks and kickbacks. Same as the so called SEO this is very toxic for the industry It confuses customers and makes them unbelievers, even for the correct ones. Personally, if I read reviews too good to be true, I stay away. I am aware at some point Prometeus reviews bordered on the impossible and I know they were exaggerated, however, that was some time ago and now we have more normal reviews, even negative ones from spammers and other people which did not pass the very strict fraud checks.