interesting, im in!
how are you planning to ensure that people are not using fake user names? you should also consider changing the airdrop form. now you can register multiple times. eg "ukon" has registered 6 times with different rankings.
U can change IP multiple times and get as more accounts or voters through which the evilness to be craved, as u want. Overall, this is not the best approach to distribution u can find on the web, if u look through this thoroughly u will figure that the best possible way to equally spread the wealth among population is to donate everything to one randomly chosen dude and close the campaign.