First, I thing the Google Maps is the best app by Google.
Now answer the question, i love to sharing with people every place i’ve been visited. Because I just like to help people. If someone wants to see a picture about a place, I will share it. If someone have any question about accessibility, I will answer it. If some street has been changed the direction or any new viaduct was built, I want to share it to help people in traffic.
So, this is why I love to sharing stuff in Google Maps, because a love people and a want to help.