August 16, 2001: "If you've earned any Beenz on your travels around the Web, you'd better hurry up and spend them." "Internet surfers have only 10 days to use up their Beenz after the company announced Thursday that its online operations will cease Aug. 26. Any outstanding Beenz will be worthless after that date. A short message on the Beenz Web site announced the close and said any Beenz in a member's account after Aug. 26 "will be invalidated by Beenz.com, and the member will not be entitled to any compensation of any kind for such invalidated Beenz."
That's a problem with CENTRALIZED ISSUED CURRENCIES, actually you can see that to happen with US Dollar, Euros or any fiat/country currency around the World. Bitcoin is immune to that, nobody can say from date X on you can't use bitcoins.
Or that you CAN use it
