One of the founders of the project Talon Media Group, Jon Southurst, says: "As far as I know, they are the first in Japan ... I do not know how they are going to pay interest in bitcoins ... The question is, how can there be extra bitcoins - this should be either speculative trading, or mining - in another way to invest bitcoins is not possible. Any hedge fund? "
Jon is not alone in his doubts about the mechanisms for making profits from deposits in bitcoins. One of the creators of Bitcoin's predecessor, Bitgold's crypto currency, Mike Lorrie (MikeLorrey) agrees with Southworth's opinion and believes "it is extremely risky to offer interest on deposits in bitcoins."