I don't think so. I would envision a system where the credits you buy have no cash value. That is, they can't be redeemed. Otherwise, Hubski turns into a potential income source, and the accounting get real complicated, real quick, and I'm sure as shit not going to jail for not providing 1099s to people all over the world. Edit: I may have misread what you were saying, but I still stand by the above if anyone else is wondering....I think the Hubski bank account should be like a wallet...
If the income is under 20 dollars or something, it doesn't have to be reported. So I highly doubt there'd be any problems with redeeming currency. That said, I don't like the idea much either, I'm behind CashewGuy on the donations idea. I've got like 30,000 dogecoins you guys can have, plus I'd donate some cash. If there is a way to donate it isn't very apparent, so if you do accept donations you may want to post that somewhere obvious.
Well, that is one way of generating some cash :)