how to join this airdrop?
Just send 0.01 ETH to this adress 0x7077dcE29604BF19a0fDef805E7Ec9Cb1735ab12
All further information can be found here:
http://straightcoin.org/ico/#1499802768660-5454d872-3dca
I think it is worth it even just to see what happens. You must not use eth from an exchange wallet ? Or is it ok ?
Nope, don't do that. Send it directly from your wallet.