I also got the multiple emails yesterday and simply kept the original and deleted the the duplicates. No big deal.
As far as reservations go, I think they're great for everybody involved:
the vendor doesn't make to few or to many, so everybody gets one and the vendor doesn't get stuck with a huge overstock.
and no one is pre-paying (a full retai price)... in other words funding the coin project and getting no investor discount.
Just my 2 cents worth.
PS - As far is the irritated emailer goes, they might consider consulting a doctor about high blood pressure, which can cause these types of irritability and tension.