This just in. Anyone who's ever worn a sideways cap is dumb since everyone this guy has seen isn't bright by his standards. It's a professionalism thing. College professors do not wear hats at all, because it's not professional when teaching a class. It's not because they're too smart for it. They have a professional image to maintain. I've seen tons of people, many of whom are intelligent and some of the most successful people in the world, wear their hats like that. I think it has to do more with age and fashion sense, than IQ. You probably think rap music is completely unintelligent as well. I bet you think anyone who listens to hip hop is by your definition, "not smart", simply because it doesn't appeal to you and you don't understand the culture. Sideways hats started as a form of rebellion and standing up against oppression. It's a lot deeper than you think, but nowadays it's mostly about fashion.
In football, professional fashion means nothing. Talent and ability does.
I mean look at Lady Gaga. She's one of the most creative and musically gifted people of our time and she wears some sh*t that makes me scratch my head. Does that mean she's dumb? Nope, it means she knows how to sell. In Plax's case, he's probably just trying to look cool.
Intelligence and fashion = not related.