I don't know. People will be tempted to get whatever free shit they can through such a service, but I think that urge will be attenuated by their desire to not

I don't know. People will be tempted to get whatever free shit they can through such a service, but I think that urge will be attenuated by their desire to not piss off their followers. I could see myself using this to purchase things that I think my followers would like, or at least not hate. Plus I've seen plenty of things like this on Twitter already: "RT this to be entered to win!". It doesn't anger me when I see those things from the cool people I follow.