Even if the legal/security issues are worked out, it will take a lot of convincing to get mainstream users/potential crowdfunding donors on board. People don't trust what they don't understand, and the fact that the value of BTC is so unstable is a giant red flag. Would Joe Shmoe plunk down fiat for X $BTC, with the knowledge that the exchange may fail or the value of his investment may plunge the next day?
Bitcoin has its own issues -- see "Bitcoin crowdfunding sites find funding difficult" (http://www.coindesk.com/bitcoin-crowdfunding-sites-find-fund...).
Even if the legal/security issues are worked out, it will take a lot of convincing to get mainstream users/potential crowdfunding donors on board. People don't trust what they don't understand, and the fact that the value of BTC is so unstable is a giant red flag. Would Joe Shmoe plunk down fiat for X $BTC, with the knowledge that the exchange may fail or the value of his investment may plunge the next day?