you can turn this vote to a vote that requires bitcoins and make it more exciting.
The Terms of Service on the site state:
"Do not keep your bitcoins in our web site more than the amount you feel comfortable.".
The domain is registered with the identity kept private.
Anyone placing any bets on this site is trusting that the funds will be held and not spent, and that when the bet ends that the winner will be paid properly.
I do understand, however, the reasons that a predictions-market operator might wish to remain anonymous. I just wanted to make sure this was pointed out here.