I don’t know about payed reviews that you can hire a network of bots to increase your rating. As the site gained popularity maybe the fake reviewers desire to spend time to investigate ways to go around filters also increased.

What I do applaud is the fact that there is a place where you can complain about being mistreated as a customer. This is the future, that you as a hotel business need to invest much now to treat your customers right and take care that they really are satisfied, otherwise they will complain online. Gone are the days of the quick profit from praying upon the poor soul that stumbled upon your hotel.

From personal experience I’ve only had positive experiences with being warned about the usual scams around X tourist attraction. And the tourist non photoshoped travel guides photos taken 1–2 days before really help me choose if I want to go to a place or not. There is nothing worse than seeing scaffolding around your targeted attraction to know if it’s the time to go or not.