So attacker is scared of the hard fork.
I have the feeling that the attacker could sue them for this.
He just got the coins by using the code and if they make a hard fork it would be like stealing the funds. 
Who can he sue? The miners will be the people doing the forks, they are around the world. Can he sue them in every country?
I believe that Ethereum should pay for that mistake, because they gathered hundreds of millions from the masses and now they want people to solve their problem.
I don't think it's funny, it's savvy. A coder found an exploit and took advantage of it. Let's stop this good samaritan bullshit, if you had 3M ether you would travel, do anything you wanted really. You wouldn't have an aristocratic sense to return it, lol.
I would return them...
You are a good one
I'm Christian, and they might have gotten some of them back. Not all. A lesson needs to be learned here, by everyone involved in this DAO business.It's simple... I could not live with myself and I believe that sooner or later people pay for their actions.