Reviews are just text associated with a date and a place. Seems like someone should be able to build a simple app or website that the public can use and trust f

Reviews are just text associated with a date and a place. Seems like someone should be able to build a simple app or website that the public can use and trust for reviews, that doesn't cost much to run. We don't need huge businesses liek TripAdvisor (which mysteriously doesn't let you sort results any more). There's a few challenges. Fake reviews is one. Also the self-selection bias - people generally only feel compelled to leave a review after a bad experience. Or, being supportive, will be overly generous with the rating. Perhaps if the review site could somehow prompt recent patrons of a set of establishments to not rate but rank the establishments, then some algorithm could convert that into a global score/ranking. You, an otherwise disinterested citizen, receive an email or text asking you to rank restaurants A, B, C which you have recently visited. You are incentivised to respond by a prize draw or something. Would this work? The hard part I suppose is getting the contact details of the potential reviewers.