You touch on something quite important that is really kind of at the core of the whole startup community, the predatory nature. Startups end up taking on massive financing and several masters with massive egos and even bigger expectations nX returns which pushes companies and founders towards becoming predatory and manipulative and generally cheating out of necessity because their masters have set quotas. Groupon "and its ilk" could very well be reborn one day and in a far more sustainable manner by not preying on businesses and undercutting markets.