What is the rationale for limiting the airdrop to Senior Members or above on Bitcointalk? Such a limitation seems to be at odds with the rationale of an airdrop (widespread dissemination to encourage adoption).
I would think it would be to limit the people that will just make accounts to get coins. Distributing to those who have been in the coins for a while is a good move. Those people are likely to bring others in. Newbies can come and go.