If i was living in US i think i could vote for him, it depends what his program would be like, but i have to say - i really like this guy, especially his important message from this video 
: https://www.youtube.com/watch?v=bKgf5PaBzyg
: https://www.youtube.com/watch?v=bKgf5PaBzygI mean, the guy is pretty crazy but that doesn't mean he is not smart. The same can be said about Trump, the man is certainly not stupid even though he is a bit crazy. I would probably not vote for Mcafee but I still think he is better than a lot of other candidates including Hilary.
I agree, he is very intelligent but in his own way and seems to be really smart, but I don't think it is an adequate person to be president xd