Skeptics and magicians thing think they prove that psychics are fakes by using clever magicians tricks to duplicate their feats.  But what does that really prove?
If I photograph a billboard advertising a car in such a way that the picture looks like a photo of an actual car does that prove real cars don't exist? I don't think so.  All it proves is that I'm a clever trickster.  It doesn't prove that anyone else is.