You can say almost anything about Frank, but you can't say he is stupid. And to retort about your previous post, yes, one of the characteristic of intelligence is the ability to use language.
I view Diaz in two ways:
1) I admire his fighting skills, especially his ground game. I hope one day I'll be able to hold someone in a triangle and do bodybuilding poses with my upper body.
2)I detest his gangsta-wannabe personality and his lack of intelligence
Frank can be an asshole too, but he as I said he is intelligent and has style. Bear in mind that I don't like him much either.
I don't think Frank's stupid- in fact I think he is quite intelligent. He clearly has a much more thorough understanding of salesmanship and marketing.
But I don't think Diaz is dumb, either, simply because he is not as well-spoken. They come from different upbringings, backgrounds, and values and I think that accounts for the way Nick expresses himself. He is a product of the streets that managed to pull himself out via BJJ/MMA. I think he is actually a very bright guy, you don't become a BJJ badass and tactical striker like that being dumb. If you sort through his interviews he has some very good ideas and even coherent opinions. He's just not as good at articulating them, and doesn't give a shit enough to take the time to adapt to the more acceptable style of speech and behavior.
Everybody good, plenty of slaves for my robot colony?