You misunderstood me.
I get your point, I am just making it clear for everyone who will read post, when you say to someone "you sound like.." sometimes some people use it as "you said he/she/it is..", that's all 
I had suspected that hacker1001.. was a bought account. IIRC, he kinda came out of nowhere and lent money to marcotheminer.
There is one 7 days old transaction https://etherscan.io/tx/0xa80610a055815e42347614654d4d701770fb306ceec49402e2b4aacdcde56f35Hacker said he is original owner of account so I guess signing message from that ethereum address will clear all doubts (about account owner).