It is reasonable if duelbits give promotion to their followers in twitter, how about those gamblers who are not following duelbits in twitter? Simply start following it if they want to take the opportunity. The same as what they have done few years back when they were so active with contest in this forum, of course the main idea is to give special promo/contest for bitcointalk members but new comers may also participate by creating bitcointalk account. Promotions can be done anywhere, as long as duelbits think that it will give good impact then they will do it regularly. We as users are the those who should follow the trend, if the trend is now in social media then we should start follow them in social media so we have good chance to grab the giveaways.