I see no harm in the study of paranormal phenomena and I don't see how anyone can not believe in the study of it. After all, it's just a case of looking at so-called paranormal phenomena and trying to find a logical answer for it, frequently with the use of scientific equipment.
Parapsychologists do annoy me though. As someone who experiences paranormal phenomena, I remain sceptic until something is proved genuine to my satisfaction. On the otherhand, most Parapsychologists will not admit something is even likely to be a paranormal phenomena, even when they have exhasuted all other possibilities.
Ah, but you are using an example of someone who is out for money, if you used a similar example of a con artist you could argue that the stock market is a fraud.
Here is an anecdote to illustrate that sometimes people can have knowledge that they shouldn't be able to have through conventional means:
A young man went missing, and his car was found by the highway out of town half burnt. He had a number of friends in the pagan community, and a large number of us got together to do a group scrying to see if we could get any impressions about where he might be. A number of us got feelings, and mine was that he was lying in leaves and water, and there was a horrible pain in his head, and the impression that traffic could be heard in the distance. Some others got a general location in the woods about a mile from where his car was found. We went and searched the woods and never found anything. The cops never found him either. About two years later his remains were found by a hunter very near the area we had searched. His skeleton was found lying in a depression that tended to fill with water when it rained, close enought to the road that traffic could be heard, and he'd been shot in the head.
There was no way I could have known where he was or what had happened to him, yet I pulled three specific details seemingly out of thin air that later turned out to be true. I didn't know this person, he was a friend of a friend, and all I had was a name and a photo.
Is it ESP? Did I tap into some sort of universal conciousness? I don't know. I have no idea how it worked, I only know that it did.
Here's a psychic message I got from my father. He had passed about a week before this and wanted me to pass on a message to my stepmother.
I told him he must first give me something - information I could not have possibly have known. he showed me a pair of brown brogue shoes.
Next morning, before I could phone her, I had a phone call from my stepmother asking me if my husband wanted any of my father's shoes. Talk about coincidence. Anyway, I asked her what the story was about brown bogue shoes. She laughed and told me my father went traipsing half way across Europe because of these shoes, and then proceeded to tell me the story surrounding them. After that, she had no qualms about accepting the message was genuine. And I think, after that, she quite looked forward to hearing what he had to say about certain things.
At this point, you're probably thinking I would have known about the shoes, after all, he was my father. I can assure you, I didn't. He disowned me after I divorced my previous, abusive husband. He didn't believe in divorce. It only in the last year of his life that he decided to have contact with me again, so there was a huge chunk of his lie that I knew nothing about.
There are a lot of charlatans about, but not all of us are. Whenever I get a message from someone who's passed, I insist on being told something I could not know about.
I have prophetic dreams, I 'know' things I should not know, I know things which have not yet happened. I do not ask for payment, although I will accept a gift, but not expect one.