On any site of customer reviews, you have to read very critically. If you do, it becomes second nature to spot reviews written by stupid and/or paid 'critics' and you learn to dismiss them quickly.

However, this also means you often have to discount the overall (aggregate) ratings and dig a bit deeper. A plus is that with the extra effort you can recognize reviews which emphasize those aspects of a hotel or dining or touring experience which are most important to you. It does take time, so it helps if you enjoy it.