Yes, crashing.
Aren't sudden and unpredictable fluctuations in redeemable value, particularly in a downward direction, considered a "crash"? Using that definition, even the most ancient and venerable of economic value reservoirs and buffers, gold, is capable of crashing. At the very least, the optimistic daydream of a free currency and state authority-free financial instrument seems to have joined the dustheap of other Libertarian technogeek-inspired fantasies. Not only has the brave new lucre crashed, it seems it can also be hacked.