Frankly speaking I'm surprised to read the title "3 Million users", is it the number of registered users? If so how many of them who are actively playing regularly? Just visited the site and I see the number of online players is 2,100+. It is a big number already but it looks small if we compare it to the number of registered users. Anyway, it is nice to see Gamdom is back with the signature campaign, hopefully it will bring significant effect to the casino and may attract more players. It would be nice if there will be also special promotion for bitcointalk users.
That should be their total number of registered users, and realistically not all are active.
Most casinos have large number of registered users, but in time, only active players will remain.
As we can see, they have more than 2k online users which is actually a decent number considering that they are not very active in the forum. So it means, they already gained their loyal patrons throughout the years.
But anyway, is there a wagering requirement for the deposit before withdrawal (I haven't read the previous pages yet but there's nothing stated on their faq about this matter)?