Also, have you anywhere in this thread answered to that first question: "So, what happens with the unclaimed shares?"
If I had a definitive answer to this question, I would have answered it.
Brilliant: "I am not a thieve: I just keep your coins for the moment"
He's waiting for people to claim shares. He can't legally push dividends to unknown parties.
But he got no problems getting other people's coins no questions asked. No legal worries at all for that. In real life, he would have already been lynched several times.
If he was going to do this in meatspace he probably would have had gotten attention from the feds a lot sooner.