Hello, I guess as a Level 7 - you already know and enjoy the Google Maps system and know the answer to this question. There is nothing to earn - only the fact is it nice to help people. The system is gamified with some perks depending on your area and what might be on offer. I started using Google Maps to give feedback to businesses I used, then I see the free upgrade on Google online storage…by then I found it enjoyable to add reviews, photos and update my local areas as I use Google Maps every - so a nice way to give back. If you enjoy exploring - why not document your travels. It is nice to give back to other people. Sure there are perks, badges and other things - but these are minor and not set up as a “reward” for hours spent, if that makes sense? Does this answer your query?