999dice is just so bad and there have been a lot of scam cases for 999dice. I think it is really just for setting up to scam people who has big winnings. That is why they also dont bother to put in much effort.
I have to back what you just stated, but I do not understand why these people keep going to and using that site among many other sites similar to them. These sites just pop up and everyone thinks they are going to be the next big winner only to find out they can not withdraw their winnings or they will just plain be scammed!!