Same. I assume it’s just a place where you can get data like a meatspace vending machine is a place you can get a drink or snack. In today’s case with nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft , you request data in the form of notes and other stuff you may have missed. But you don’t even have to pay!!