I stopped using TripAdvisor because I found that it has a very strong tourist bias. It seems most of the people who post reviews are tourists, and this ends up being beneficial to places that aren't necessarily the best in their categories, but offer the most tourist-friendly experiences. When I'm looking for a restaurant abroad I'm not looking for the places that have English-speaking service, translated menus, and memorable decoration. I'm looking for the places that have the most genuine and best tasting food, places that locals would like to visit. It's hard to find those places on TripAdvisor.
You are correct about the "bias", but the site name is TripAdvisor, so I disagree with calling it a bias. You just aren't the target customer.
If you want more sophisticated reviews you can always go with Rick Steves, who usually does a good job of pointing out what are the most popular restaurants for tourists and contrasting that with the most popular restaurants for locals.
