A new usage for Lightning was proposed by Tyler H under the name Atlas.
It is a distributed, peer to peer mapping storage and retrieval system for advertising human meaningful data.
I have an idea that may be an excellent use-case for Lightning. Where Numerifides was an attempt at decentralized identity rooted to the Blockchain, I thought of a new system that uses Lightning itself that seems superior, and perhaps gives Lightning even more utility than it currently has.
The long and short of it is: I propose adding a feature (along with an RFC and a feature bit) to Lightning whereby any given node can be queried for a mapping (such as “Give me the IP address for Google.com” and the node can provide any answer one chooses along with fulfilling a Lightning payment request the client provides.