It’s possible—even easy—to read the suit accusing Groupon of illegal practices and feel no sympathy for the plaintiff, Daniel Keeler. That doesn’t mean he’ll lose, of course. But it may mean he’s dumb or opportunistic.
According to Keeler’s own suit, the limitations listed on the coupons appeared on his computer screen before he bought a thing. So he’s not saying that he didn’t know ahead of time about those limitations, he’s saying he never agreed to them.