Every business before they launch their service or products, they do a feasibility study, checks the competition, estimated profit and the losses that they can accept, but when it comes to online casinos it's different, they may have the best features and the best support but if they cannot get to as many players or as many communities they will lose in the competition and the growth they needed to keep up their business.
This is where advertising comes in its a bridge between your casino features and what you can offer to the community, so advertising has a huge impact, and what could be the biggest and free advertising but the platform Bitcointalk is offering.
Almost project coin and casino gambling platform keep researching how effective advertising and how much budget allocation to make investor interested with casino site, without brave by burning much money with paying advertise I think not effective with casino site popular and most effective. Have several casino advertising their site by Bitcointalk forum and a lot of casino site use twitter and CMC as their way how advertising for many people, but depending when active advertiser casino will give good traffic and every day have new member join on the casino most active as advertising.