The part I don't get about these types of situations is why bother to refund anything? It's not like he can ever run another groupbuy with that ID. Once you got away with it what's the thinking behind returning anything to people you just got over on?
Because, of course, these scammers are hoping to buy some time to get away with it.
If you feel you've been scammed, you'll go after the scammer immediately... but if the scammer tries to say, 'oh, I'll pay it back!' and gives some 'proof' that they're willing to give it back, by giving people a small percentage of their money, gullible people will believe this story is possibly true, because just 'waiting' for money is a lot easier than trying to persue the person.
The scammers then have some time to either (a) hope most people forget about it months later (b) change IP addresses by changing hosting providers, or some other way of hiding.
It's such a common scheme, I really don't understand why so many people fall for it - must be their first time seeing this type of scheme.
And who in the world, once robbed, and in the hospital needing money to pay bills and lost wages at work would instead of thinking of himself, refund money to people he doesn't know on the internet. Money he doesn't have. He should write about being concerned about finding who the people are that beat him up / stole something. Plus, who in the world steals bitcoins by beating someone up? It's ridiculous.