before created this thread,did you even read something called 'RULES' ?
you can not give them something 'incentive' after they post something on your thread such as AIRDROP.
if you keep doing that,your thread will be locked and your account will be banned(perhaps).
read it here :
https://bitcointalk.org/index.php?topic=434310.0
change it before it's too late.

thanks!