Yeah fellas this is all a scam, guy is bating people into a fake airdrop and then spamming in his chat to send emc2 to a smart contract
etherscan.io
which is just his address where he then trades your funds on an exchange and essentially robs you , i still signed up and will see but those posts in the group chat are scams and so is the XRP one
below is wallet of exchange
etherscan.io