I'm building a "VPS/VPN/Darknet stuff" called Indranet. Aside from anonymity and hidden service routing, it potentially creates a simple mechanism for bandwidth-based paywalling, for access to services and/or data.
I am of the opinion there will be many ways to micro-monetise network services and data delivery as we go forward, and more again when we get Indra out the gate and into production. I'm sure the use for accessing premium grade Nostr relays, for example, or archivist services that don't throw anything away (think user-paid The Wayback Machine). And hidden vaults of all kinds, data and all kinds of keys.