[Tyhm]

Sure, I could do passwords, ircbots, webscripting, etc. to emulate a PS2 finding another game's savefile on your memory card - and giving you an extra song from K.K., or tikigod, or whatever. But:
1) officiality. It'd be ghetto to jury-rig something like this, like strapping a truck mirror on a honda.
2) Security. Passwords can be cracked, IRCBots fooled - less so when it's server-to-server communication.
3) Support. Stefan's a busy guy, sure, but if he makes this in Graal and all the servers have equal access to it, they're more likely to support it than if it's one server's "shared" feature. See also: nobody showed up for the Graalympics.

But for Local Variables, the topic of This thread, good idea, poor name. Or perhaps my own project should upgrade to Universal Variables.