Deleting Nintendo Account brings up "Mission Status"

For most of us, today was the day where we could register for a Nintendo Account. But someone's already toyed around with deleting their Nintendo Account, and with that there's a few more interesting tidbits of information that's come out of it. If you delete your Nintendo Account, you do risk losing your points and whatever rewards you'd obtain. But you would also lose something called "Mission Status". What could this be? I guess we'll have to wait and find out as we get nearer to it's launch...