But 1 thing doesn't add up to DiceBitcoin's story. Why wouldn't the new guy just implement a code to auto withdraw a little bit in the hot wallet every now and then (draining it completely over time).. Doesn't add up.
The new developer apparently had the ability to put whatever changes he wanted live.
The obvious thing to do would be to allow himself to see his server seed. Then he could win undetectably whenever he wanted.
The way the site was stealing from players in a very obvious way makes no sense that I can see other than as an act of sabotage.
If you give dicebitcoin the ultimate benefit of the doubt and assume that there was a "rogue employee" you still have to take into account that they let a random untrustworthy person access their code and thus jeopardize all users on the website. This is the best case scenario, when users trusted you on Just-Dice, they did so assuming you wouldn't do something like that. In my opinion this seems pretty damning. I don't see why a rogue employee would choose to steal in this manner either.
Also, why would someone in that position want to sabotage that website when their potential gain from having that sort of access is so great. He could literally just view the serverseeds and win millions while remaining undetected. The only reason for something like this to occur is to boost the profit of the website.