It seems TripAdvisor are adopting the Google model (similar to Google Ads). Unless hoteliers monitor how much business is incomming from this channel then they are better off gaining a generic ranking through consumer reviews.
The questions now for me to watch are, will TripAdvisor suffer from more, so called, "Black Hat" techniques, like more engineered friendly reviews and how will they deal with poorly reviewed hotels who are prepared to pay?
TripAdvisors business model was always open for a more commercialized option once Expedia wanted their ROI but now the field is open for other new review sites, with a more open model, to leverage this policy change. The financial business model will have to depend on a more "seen to be" independent method.
Perhaps we are seeing the beginning of the end for TripAdvisor as I know from my own experience I will not continue to review sites knowing that my efforts are for financial gain. My efforts have always been to improve the quality to the customer through "Voice of the Customer" feedback.

hospitality-quality-discussions

TripAdvisor going down the road on the Google model