They are not going to pay someone to trace stolen money back to them are they? lol. Or is this a way for them to 'legitimately' keep 30% of it?
anyway because of their fractional reserve there is no fair way of distributing back the stolen bitcoins.... It will be a mness and first coem first serve basis which means people still lose a lot
Don't wonder much about the psychopath's never ending stunts, they can be very imaginative.
Just don't listen to them, reckon that your funds are completely lost. And hope at least authorities hammer them like they deserve.