This project is suspicious. keep your private key and don't claim your XME until you make sure it's true. Any of the free fork token from Monereos should automatically airdrop to EOS account. But if they require your private key, forget about it. You could expose risk your EOS being stolen.
That was the main goal of this devs, To steal private keys from unsuspecting people that will join the fork. The good thing the dev already abandon this thread and no one got scammed.
Is this even related to this project or is this a totally different one?