I may have missed something, but the fact that Nikon knows there's a guy in Seattle who went to three launch events doesn't mean that they got the info from DPReview.Bill, you are the reason I know that the Nikon guy reads these forums... he mentioned, "There is this guy in Seattle who went to 3 launch events..." :-D... For me, personally, this supports what my thoughts were at the 3 events I attended..
Alternative sources of info are:
1) The same reps were at all three events and remember a guy from Seattle who was at all three.
2) Nikon collect data about who attends, and have analysed attendees who have been to more than one event.
3) Bill told one of the reps at the last event that he went to that it was the third he'd been to.