And it is a reminder: investing is not so different from gambling, you still can lose your money.
There has no confirmation yet from the new owner and since no one posted about withdrawal delay from moneypot then we can assume that the player has withdrawn some of its bitcoin already so it could be considered as a legit win. Someone won over 50 btc as well IIRC from dustdice but soon after that investor got its luck back
The owner has just confirmed regarding this big winning https://bitcointalksearch.org/topic/m.13715691 , he said "suspicious bets" means that he think there were something wrong on moneypity's bets. Lets wait for moneypot staff to investigate this..
I had quotes around "suspicious" because several people in the MP thread were calling them that. Until there is a investigation of the moneypot logs, no one knows if they were real, or if the guy was just insanely lucky. I know the staff is looking at it though.