Sharing photos and commenting on the places that I visited on Google Map would give more information to it. The more information contribute to the society will improve the place itself as if there are improvement needed. Moreover, it will make anyone who access it has a better decision wether it is good or not.
The information collecting from Local Guides are the combination of many people which are more genuine data that viewers can compare and benefit from it. Local Guides is one of the social network that benefit everyone in the society. The more importantly, we all can access to all the information from Local Guides for free.