This is pretty off based on my understanding of Worldcoin. They want the opposite: they don't want to know who you are. They only thing they are interested in i

This is pretty off based on my understanding of Worldcoin. They want the opposite: they don't want to know who you are. They only thing they are interested in is are you a verified unique human, or operating the account of someone is a verified unique human (less than ideal but will happen). The biggest use cases for this are to establish a finite limit of online accounts to combat inauthentic online behavior, to provide a robust way to vote, and to provide robust way to evenly distribute UBI.