I can see that almost all are newbies who have played in your site for 2 BTC freeroll and they are as soon as opened the account they are just posting on your thread,
I am felling like a scam as no others from higher rank have posted any of their winnings or else if they have played in your site, and lot of copy of other sites details are matching in your site.
I think it is the start for their business and these newbies are better for them , until the higher rank members take interest in their casino and start to post their experience in there. The better is that they start an advertising campaign to get fame over the forum.