Time ago I was having a meal and the barman brought me the mayo sauce. It was timed out!! I remember the face of the staff looking at me while I was writing the review for google. They can buy a new mayo sauce and give to customers a good one, but that review… that review will be on the web for ever.
The local guide program has given to people the opportunity to make their opinion count. Google give us that power, now, all people matters.