I think their signature campaign last time was a success, maybe they think they can attract new players and make old players stay because of the contests, bonuses, and other promotions that they are currently and will be doing later on. But I believe, doing more promotions here in bitcointalk, will be a good help as a promotion.
Running signature campaigns to help promote their site is just one of many ways to attract gamblers. An alternate method is to run regular contests like Roobet, Duelbits, Crypto-Games etc in the 'Games and Rounds' section.
Wolf.bet should hire someone reputable to manage these contests(Wagering, Deposit, Finding stuff etc). This method has become quite popular in recent times.