For a hyperlexical 8-year-old trying to understand why she was a misfit everywhere, including her own family, it was a mind-saver. It really did help knowing that nothing in my chart is in a place "friendly" to it--and often, not to each other. In lay terms, my energies don't express themselves easily, and when they do, they are explosive. Frankly, whether we call that an unstable chart or Asperger's doesn't make a whole lot of difference. What is interesting to me is that the horoscope reading I had agrees with the better class of psychometric tests I've taking--including the autism battery.
I didn't find Freud or Jung until college, and the Myers-Briggs Type Indicator is descended from astrology (Jung studied astrology and tarot--I own both the book and the custom deck), and I think Isabel Myers was his grand-daughter.
So in my experience, I can't disprove it.
That said, when I notice that Google SkyMap says the Sun is in Scorpio on my birthday, it occurs to me that if there's any correspondence between electro-magnetic emissions and sun placement, then the precession of the equinoxes applies as well. So if it worked then, it works now...but not the way we think.