I've only watched the first video so far.  I'd like you to thank her for humouring us, I was very amused.  I was laughing out loud at some of them as a matter of fact.

If she wants to convince people, she shouldn't be linking parody ghost videos.  Everything in those can be done VERY easily with off the shelf equipment and software.  I especially liked the one with the door that swung open in the exact same manner it then swung closed, and then chairs/tables being moved by people off screen ... can't get more amateurish than that.  Well, maybe you can ... that pantry door that swung open to a convenient angle, you hear the latch re-extend as though it was already resting against the door frame and not in the latch.  As for the other graphics, I've seen people do things like that on their home computers in a matter of minutes.  A bit of cleaning up and bob's you're uncle.