One of the things I love most to share in Google Map is answer questions about accessibility. I love this because i know that Google Map use that information to improve their services to the users(include me) can have a better experience.
Particularly because I am one of those people, I do not get up from my chair to go to a new place without first seeing on Maps, the schedule, photos, customer ratings, and this helps me a lot to know what to do, whether it’s worth it or not go to that place.
With helping one person to decide, I already feel useful as a Local Guide and for that reason i can say: Sharing knowledge with Google Map is Sharing knowledge with the world.