I’m sure it means “Gimme $$$ and I’ll think about it.”.
A multiplayer version seems a bit far-off, but how about multiplayer-esque instead? Say, whenever a player leaves a map which has existed for a significant amount of time (or dies with a high enough score) and is online, there’s an X% chance of it being uploaded onto an online server; then whenever a player leaves a map while online there’s a chance of that map being used (“This lands feels familiar, yet…”). A map can be deleted from the server once it’s loaded or a certain amount of time passes.
Signs, bones files (Dead characters leaving behind their map/inventory), and special event maps can be uploaded along with a gamut of other things.