I sometimes had the impression that just-dice might be the first step in hackers washing stolen coins from MtGox or elsewhere. I mean its easy to clean there and when i see how people came in with thousands of bitcoins that they played away in an instant i asked myself who has this money and where is it from. Now it slowed down.
Is there a competitor that could take the bets? I dont know of another site with similar max profits.
Maybe a player survey would be a good thing in case player miss something.
One day there was a guy in the JD chat asking how he could get 100 different deposit addresses for a single account at one go. When I asked why he wanted them, he said he needed to launder a large number of coins.
Up until then, Just-Dice would give you a new deposit address each time you used your previous one, but this was apparently too cumbersome for this launderer. Upon hearing this, I changed the site so that now each account gets a single deposit address no matter how many times they deposit.
I don't know if this change was responsible for the site seeing less large deposits and withdrawals, but that's possible.