It seems like they used to have to work harder to get to the real identity. Now, it's a quick phone number search, that looks pretty accessible to anyone. It's a little more work than that, but it's nothing they couldn't have tried, themselves. For all the time the victims spend obsessing over these situations, couldn't they do that much? Every now and then, they have someone who has put some energy into trying to uncover the truth, but for the most part, they don't do the simplest things to find anything out.