He is refusing to give a signed message.
That means, he should be nowhere close to the account. Unless
1) Theymos/BB/DT 1-2 member say other wise(with some "vouch" that they guarantee that swing is the owner)
2) He provides a signed message from a staked address
you shouldn't give control of the account. If the second happens, you should come to an agreement regarding the loan , 1/4th, 1/5th , one-half etc. of loan should be repaid by him before giving control of the account.
Story makes less and less sense, anyone can register those accounts.
He is saying he can not sign a old address as it is a coinbase address?
Coinbase allows users to sign a message.
He is saying that giving me an old signed address from 1E6soVzn7Z5NGguwD9sZfXkVmn8a51Cg71 is dangerous ??
Paranoia, signing address has no negative consequence on security whatsover. Also, do ask when the address was posted from murderous account
What do you think about his reason for not reporting the hacked account immediately? why did he not post a scam accusation or hacked report in meta?
Well just stating a possibility, he might have not known of the steps to recover the account