The only people who come out ahead in class-action lawsuits like this are the law firms. YOUR settlement would be, maybe, a $5 coupon, BUT they get to sell your information for signing up. Not really worth the time and effort.
But Rev. can correct me if I'm wrong.
Probably, except for the "they get to sell your info" part (unless it's a scam). There's usually little benefit to the end consumer from these types of suits. I personally always ignore them.
Even though the consumers usually don't get much and the lawyers get a lot, that's not to say these kind of suits don't potentially serve a useful social purpose in deterring certain types of corporate misbehavior. That said I have no idea whether this particular case has merit.