To declare all "spiritual" or metaphysical phenomena fraudulent, and the practitioners frauds, and the believers fools; is itself fraudulent, since it is impossible to know this with certainty.
What you have is a website dedicated to a somewhat chaotic religion consisting of self-believers, whose sacrament is "hubris."
To call me a fool for knowing what I know for sure, is to reflect foolishness back on the accuser for claiming to know things that cannot be known.
Over the many years of my life, I have kept a journal, and have accumulated a small number of "miracles". They can be categorized according to the degree of specificity and "serendipity" (luck); which is useful to separate the element of luck (which certainly exists), from the element of "mind power" (as one of my atheist friends proposes).
I have in this collection one instance of absolutely certain precognitive vision, with a witness, from the time I was stationed in Iceland in the Navy. I do not believe in predestination, such visions are, to me, warnings of what can happen, but these warnings would be pointless if the instance could not be avoided. In my case, I described the event that my roommate would be subjected to, and I told him that when I said "stop" he was to do so, instantly and without hesitation, or we would not proceed on the adventure. Iceland is quite naturally dangerous, but no reason to not go on adventures (in fact, Iceland is THE place to go for adventure!). At one point on the adventure, I saw him doing exactly what I had seen him proceed to do in vision, and I called out to him to stop, and he did so. Had he taken one more step, he would have started sliding on the ice down into Gullfoss (shaped somewhat like Niagara Falls). The slope of the ice could not be seen because of the overcast sky, and it was extremely slippery from mist (that is also why we were playing on it, it was fun and adventurous). I was wearing crampons and could walk safely on the ice. One step more would have put him on a slippery slope of about 30 percent grade. This I saw before we went, and this I explained to him before we went.
My children sometimes try to manipulate me. They fail most of the time, and from a deterministic point of view, there is no way for the child to prove that she has a parent. hHe could be a "clone" without natural parents at all. hHe cannot produce parental miracles on demand, she can only ask for parental miracles (behold, a bottle miraculously appears merely by waving hands and saying "baba!" but it is not reliable; many times it does not work).
I will agree, tentatively, that if we have a "meta-parent", it will be extraordinarily difficult to prove using our rather limited three-dimensional electromagnetic matrix. Are you familiar with the Heisenburg Uncertainty Principle? I'm sure you must be; you can know the velocity, or position, of a particle, but not both. The corrollary is what I find more interesting; the act of measuring the particle alters it. Measuring anything must draw energy from the thing being measured. Neutrinos cannot be detected since they go zooming through EVERYTHING. That's an oversimplification, there is a neutrino detector in operation and I think they may have finally detected one.
I have a hypothesis, that the human brain is, among other things, extremely sensitive to chaos phenomena. That is to say, a hugely parallel processor synchronized to the alpha rythm. Imagine the effect the slightest perturbation would have on the alpha wavefront; by the time the wave washed to the far side of the brain, the perturbation would take the form of a pattern, or gestalt. The serial data rate is extremely slow, but the parallel data transfer capability of the scheme is enormous. The high degree of parallelism would, to a serial sensor or detector, be seen as pure noise.
In the Navy, secret communications are ensured using electronic communications if a "Gray code" is used (same number of bits always on and off, just different bits). Obviously, the greater the number of bits, the more "white" becomes the noise.
Even if it were possible to produce an electromagnetic "God detector", the high degree of parallelism I believe existing would always appear as pure noise of probably long wavelength. Indeed, it might well be holographic; a pattern of waves that has no coherency at all except when resolved in the cerebral cortex, with the alpha wave being the resolver.
Hypothetical, but certainly more interesting than supposing there is no God, no miracles, no nothing but aggregations of matter-energy that arrogate to themselves to suppose they know something of the universe.