I am still playing because i earn most of the times, i have a net profit of 0.2 BTC, they always pay in seconds and i never had any problem. Also the house edge is only 0.1%
I would like to see your statistics and real proof of your profit. 999Dice's House Edge is so low because casino can manipulate the outcome of the bets.
I'm still curious, after a lot of negative feedback about 999dice. Apparently, there are still many who are interested in playing there, what makes them keep playing dice there?

It is because apparently the scam is not so obvious, casino is paying, scam is hidden within provably fair functionality and it is really hard to prove.
Basically if you are verifying your every bet your bets are legit, but once you stop doing this, bets can be manipulated.