If this lawsuit is ruled in favor of the plaintiff, it might lead to lawsuits against those who have collected and used private data more maliciously, from advertisement-targeting services to ALPR services that reveal to law enforcement your driving habits.
Having recently migrated from Reddit (and kept up with commercial social media hacks) I'm used to Nothing To See Here! We totally didn't store your personal information in plaintext for hackers to snatch. Oh and maybe please change your passwords. All Part Of The Show!
So, by comparison, the response here is downright heartwarming.