You are right, in fact I also have a different opinion about the Duelbit gambling site, the only person who wants to join with small capital, easy for them for everyone can bring big profits, if they really have luck in gambling Duelbit.

Deposit $10-$50 you can follow the competency here: https://bitcointalk.org/index.php?board=71.0, lucky ones can win many times the capital they deposited.

I also have a friend who told me the experience of betting on the Duelbit site, with a deposit of $50, one week can make $500, that's just by buying a Bonanza.