I obviously have no dog in this fight
But, I'll put my two cents in.
I have no issue with her suing the two boys, and by extension, their parents' insurance companies. After all, it is the two boys who invaded her privacy and embarrassed her; they are the ones who did the damage, and if she feels that the sentence levied upon them by the justice system was not enough, then SUE AWAY! But, I do have a problem with her suing the fraternity. Obviously, the entire active chapter was not a party to the harm, neither was the alumni base or the advisory members. So, why should they be a party to the suit other than in an attempt for the plaintiff to try to extract the greatest monetary judgement, and the fraternity has deeper pockets than the parents.
Having been a party to various suits, I know what a huge pain in the ass it is to be involved - depositions, astronomical lawyer fees, etc., not to mention the worry and stress that accompanies being named (unfairly!!!) in a suit. Background - we own a company that has been named in suits, even though we had nothing to do with the problems, we have always eventually been dropped from the suit, but in the meantime, we have spent money that should have gone to the company to hire lawyers to defend our GUILTLESS position, and spent sleepless nights worrying about the costs and end results.
So, while the case against the fraternity might not
legally be frivolous, it is going to cost them alot of money and energy to fight it.