Your bitter contempt is not necessary, there are many people out there who honestly would like to find the truth about this, and do not pursue this as a vehicle for fraud and opportunism against the weak of mind.
Robin,
In the spirit of the holidays, let me apologize for the tone of my post. I'm really not bitter nor contemptuous - more aggravated, but a brief bio may help explain...
I was born in 1949, making me 63. From about the age of 12 I was exposed to all sorts of things - coming of age in the late 1950's and 1960's.
Those were heady times. Some of the stuff I read was Baba Ram Dass, Alan Watts, The Tibetan Book of the Dead, Carlos Castaneda, de Jardin, The Chariots of the Gods, The Search For Bridey Murphy, and on and on. I tried then and try now to have a really open mind towards things spiritual and paranormal.
But I was also reading Martin Gardner and Carl Sagan and the like, and gravitated more to the science-y stuff. But as Pixel42 said, I try not to be a nay-saying cynic either - I would love it if some of this "woo" stuff were shown to be legitimate. The science fiction I immersed myself in often included "mind" stuff, and within that context I did and still do accept the possibilities of all sorts of weird things.
However, most real phenomena yield pretty well to the scientific method. But over the years, things like telepathy and psychokinesis and the like seem to resist definitive "proof". It seems like nailing Jello to the wall. If, in fact, someone can move something with their minds, or transfer thoughts one to the other psychically, it should be fairly straightforward to measure - certainly easier than measuring cosmic background radiation or how much light is bent by the sun. I mean, science is pretty good at teasing out really tiny effects if they're real.
So, doing the math, I've spent about 50 years trying to sort out this sort of thing. I'm an atheist, but a hopeful atheist because some possible Gods could be pretty cool (but not the Judeo-Christian one, who's a bastard to my way of thinking), and I'd prefer that my death within a few decades doesn't just mark THE END. And I'm a skeptic, but a hopeful skeptic because weird stuff is cool and I like to think strange discoveries still await us.
I will compose a more specific followup post, but let me summarize by saying I get frustrated when people say, "So and so can do "X", but really can't do it under "Y" conditions". Special Pleading is all the hucksters and deluded individuals can fall back on when their attempts to prove their powers fail - as they historically have. Your mention of real powers that for some reason can't be shown under lab conditions just sorta set me off - I've heard it SO many times before.
People either can or cannot move things with their minds. They either can or cannot send thoughts to one another. They either can or cannot converse with the dead. For now, until rigorously demonstrated, I'd say the rational default position is the "null hypothesis" - there's no "there" there until proven otherwise.
Anyway, bygones and I hope you end up teasing out the "truth" about these things one way or another.