I don't think victor needs to use a bunch of shill accounts. There are clearly more than enough morons on this forum to deposit into any scam that shows up.
He could be going for a bigger scam
He could have run a successful ponzi pass thru by depositing and getting out in time
He could just be taking everyones money and betting it on satoshi dice and got lucky
The fact that he paid out does not make this a good investment.
+1
Assuming the list in the OP is correct, it seems viktor paid out 400-450 BTC in interest. Thats substantial, but not a huge amount to invest in your credibility if you plan on doing another Pirate.
The OP might give a clue here: "Why do I offer such a high interest for my 100% guaranteed deposit? I am interested in slowly building my reputation here as a bitcoin trader". Weird reason if you ask me.
My prediction: within a month viktor will start another round, with lower interest rates, perhaps even without guarantee. And he will have no problems collecting far far more than 450 BTC.