The scheme used by cheaters in the Utopia review campaign with triangular transactions. Addresses receiving payments from the campaign manager send their Bitcoins first to other addresses before collecting them into one address.
THE RULES & REGULATIONS Do not enroll your own alt-accounts in this campaign. I have the right to remove you from the campaign without payment and leave you negative trust if you are caught enrolling your alt-accounts.
If you care about your campaign, maybe you should limit the criteria of Newbie accounts that apply. Even newly created accounts you accept, it's like you intentionally attract cheaters to participate in making your campaign successful.