I've helped one person kill Shadowlord.
One person open 3 Mage gate.
And given out advice/info to about a dozen people so far in the MrHappy LS. Heh.
I wonder how many of them will get hooked? The event doesn't even technically start until the 28th, so MrHappy hasn't engaged at all yet other than trying to keep pearls in the concierges every other day.
It's neat.