I'm not so convinced it's failed. It's enabled the massive expansion of a relatively new industry: computer system hostage taking. This, combined with enabling

I'm not so convinced it's failed. It's enabled the massive expansion of a relatively new industry: computer system hostage taking. This, combined with enabling illegal money-transfers, and other illicit activities, has been of extreme utility for many people. (And some of that money transferring, out of certain countries, is not amoral, IMO.) That being said, as an above-board currency/asset, it certainly has failed.