I started using Google maps with correction of a ATM Location. I was looking for ATM and find it 400 Meter away from my location. But once I follow map and reach there ATM was not there. I lost my time due to incorrect record. Then I deiced to correct whenever I find any mistake. Because my contribution can save time other. I write review so people can understand service/product. And I seen our contribution help our society. If I find anything that may help our community better I add photo or information on the maps.
I used to add small apartment/building in google map regularly. It helps a lot to find the address in unknown area.