2 days is not much time to give for people to sign up for a airdrop. This thread was created on the 27th and the airdrop signup ended on the 29th, giving almost no time for anyone to signup for this airdrop. The fact that 8000 emails received the airdrop makes this project very suspicious.
I announced the project on September 18th. The airdrop sign up was open for 10 days before I created this ANN thread.
What kind of precautions did you take to prevent fakes? Were multiple users with the same IP allowed to participate?