Yes. For example, they've said that you could use a blockchain to keep track of book borrowing in a book club, where people expect to use the blockchain to get books and not to get rich.
I do think this is pretty reasonable, but it sounds like you meant something else.
In addition to those sorts of uses I specifically mean "currency," since in their Dec. 11 statement the SEC says "there are cryptocurrencies that do not appear to be securities."
