Ever since the popular social media and messaging app WeChat popularized the game of “*grabbing red envelopes” during this year’s Spring Festival, *freebies in the form of digital “red envelopes” have become a must-have in the marketing campaigns of many Internet companies. From weibo’s World Cup promotions to rival taxi-*hailing apps Didi and Kuaidi, everybody is busy handing out *virtual gift packages, which millions of consumers take delight in receiving and opening to find out what surprises lie within.