Great story from a Fed Agency...
Went into our Post Office to deliver an Ebay package and the window rep asked me if I was the one stamping the bills.
Even though I expected to get slammed for it, I admitted my obsession. She went on about how she thinks it's so cool and how she's seeing a "ton of them". It had a couple of other people in line really intrigued and I gave 4 people the URL.
It was an interesting Post Office stop!