I would prefer to see Stake keeps their own ways to give promo/giveaway instead of adopting from other sites. As I can say, Stake has more varieties of the giveaway compared to other sites which is a big advantages so their players are not getting bored easily.
It there should be more giveaways then it will be better if Stake add new type of giveaways, a unique and surprise thing is always attractive than the common ones.