Most likely he's just taking advantage of the situation to extort some guy he knows has a lot of btc since it worked with Mr PBmining.
Did it really work with PBmining? Is there a thread about this?
I found this thread about the situation with pbmining:
https://bitcointalk.org/index.php?topic=887871.0 though i didnt find that Airwolf was the one who was paid for threats. Only claims by others that he even got his coins from MtGox back, which sounds highly unlikely.
So can you give a lead to informations on this?
If true then i guess its easier to get coins back from a scammer who fears being doxxed and still has the coins instead getting coins from a business that went wrong and simply doesnt have coins anymore.