Someone hacked a Bitcoin vendor. The vendor had some trouble making payments to account holders. Now some of those account holders have sued the vendor to the tune of about a half-million $US.
There's a tension between the freedom of a virtual currency and its security.
I wonder - how secure are holdings of priority points and rewards and the like? How secure is Facebook-based money? How secure are credit card systems like Square? Dollars and Euros and Yen are protected by law enforcement. Other things aren't. Will that in the long run make the difference between currencies that survive?