I agree, it would be difficult to prove. I find it difficult to even follow all of it, it seems like an obsession to me. Jmo.The harassing members are bullies and cowards who don't announce the evil entity they are acting for. It will be difficult to prove it's specifically Scientologists unless they dropped calling cards. Is it them? Of course it is, logic tells us this. Can that be proven without physical evidence? Doubtful and that's the difference between logic and the law.
Good luck, Lisa, I hope the judge rules if your favor.