The "Your Contributions" page gamifies the act of being a helpful citizen. It transforms a passive activity (looking up a restaurant) into an active one (leaving a review). By quantifying the impact—showing a user that their photo helped 50,000 people navigate a train station or that their review saved someone from a bad meal—Google incentivizes users to keep the map accurate and up-to-date.
The URL https://www.google.com/search/contributions/profile?authuser=0 is a valid, internal Google link designed to provide users with a dashboard to manage their user-generated content within the Google ecosystem. It serves as the primary interface for members of the program to track their points and manage their reputation within Google Maps and Search. https wwwgooglecom search contributions profile authuser 0