As I wrote in another post related to this video, let Sir Charles Darwin's theories do their job...
If you have an average IQ, you're a regular, normal human being with no major mental problems and still you fall prey of... ehm... yer royal d1ck, that's your fault nobody else's... This might be the oldest way to scam ppl since the primitive man, only implemented via internet... Not exactly the sneakiest plan ever...
Well, maybe Grandpa was hoping for a miracle... I would have liked to get his email address before he lost the 300k: I happen to have a few boxes of blue-pills to e-sell... lol