I had to deal with SE support once and everything went fast and nice, so I really don't have a reason to complain. I can understand that you think they should do more in your case and punish the man who deceived you, but the truth is that making your FC's belongings as safe as possible is your and it's members responsibility. People from SE don't know what happens behind the game wall, so they have to be really careful about this kind of thing and I really can't blame them for their reaction. They have only your words - they don't even know if your friend's account really has been hacked (you can use VPN and log in from every place in the world, so it is really not a proof). It's sad to say but it looks like it's a lesson about the account security for every one of us and I suppose it's the way you and your friend should treat it, too.