BITZ.io based on Whois is two week old casino but the team behind the platform knows how and where to promote their platform, and they made the right choice promoting their platform to one of the most visited forums of the gambling community.
So far the team is doing great, copper account, a well-designed announcement thread, and a responsive representative launching a marketing campaign like a signature and review campaign is the next best thing to do.
They have done some first good works to advertise their casino on Bitcoin Talk forum: Design good graphics with basic attractive information about their platform, buy a Copper membership to display graphics, images.
I agree with you that a next step is to advertise their service to forum members at wider scale, through a signature campaign or contests. I think they even had plans to do it before joining the forum and perhaps they already got an advisor and a signature campaign manager for that.
In case they need a signature campaign manager, feel free to ping me in DM on the forum. @Bitz_Casino