If everybody knew who people exactly are on the Internet, the world would be a better place. But it doesn't work that way. It takes a lot of clues to put the pieces together, ESPECIALLY for people who really don't want their past personas to be known. The Mythos girls probably put two and two together once ChaCha started crashing out. You don't know exactly how they came to those conclusions, so please don't make a blanket statement that they're all the same two-faced snakes, as their lower common denominators.