I thought this was already reported, but I can't find it in here.
I think that a mandatory user tutorial would be smart, as an introduction to the Valt. Use that opportunity to motivate users towards the social aspects, creation, XP/rewards, etc.
The tutorial should be in an environment that is relevant to the Valt, to build the excitement and feel to it. I remember a space-station video a while back. of some guy waking up and making a coffee. Out the window he could see the Valt. That could be a cool starting point for such a tutorial.
Key point: Gotta easily equip the user with the tools and knowledge to prepare for the Valt user experience.