Crazy? Nope.
Completely ignorant, stupid, and trying to steal your money? Absolutely!!!
If this charlatan told me this to my face while trying to get my hard earned $ out of my pocket, he would learn what it's like to get back-handed!
Truth:
Electrons have a "spin" associated with them, but it typically isn't considered a spin in the traditional sense of the word. It is part of the quantum state of the electron, and it is most certainly NOT "every which way" (that would imply a continuum, yet when we speak of spin we are in the quantum domain):
https://en.wikipedia.org/wiki/Spin_quantum_number
Yes, electronic spin can be manipulated to get them all lined up. But, this requires very intense magnetic fields, on the order of NMR (aka MRI)!!! What this means is that there is absolutely no way that this guy has a device to get all the electron spins aligned. If he did, then the incredible magnetic fields that the device generates would kill ALL of your other electronic devices.
Another point, electronic spin is NOT a source of noise!!! Go read the scientific definition of noise and you won't see 1 word about electron spin.
Science and knowledge win, again!