From one of several cryptocurrency- and blockchain-related articles in the latest issue of The Economist
"As these limitations become more widely known, the hype is starting to cool. A few organisations, such as SWIFT, a bank-payment network, and Stripe, an online-payments firm, have abandoned blockchain projects, concluding that the costs outweigh the benefits. Most other projects are still experimental, though that does not stop wild claims. Sierra Leone, for instance, was widely reported to have conducted a “blockchain-powered” election earlier this year. It had not.Bitcoin and other cryptocurrencies are useless -- The Economist
Just because blockchains have been overhyped does not mean they are useless. Their ability to bind their users into an agreed way of working may prove helpful in arenas where there is no central authority, such as international trade. But they are no panacea against the usual dangers of large technology projects: cost, complexity and overcooked expectations. Cryptocurrencies have fallen far short of their ambitious goals. Blockchain advocates have yet to prove that the underlying technology can live up to the grand claims made for it."