I only recently learned of this individual. Before I dig into previous pages of this thread, I thought I'd drop my impression based on a few vids I've watched so far. Maybe you'll tell me I'm totally off-base.
I think Destiny has some fixtures of intelligence. So you could say he's 'intelligent' and I wouldn't really find myself at odds with the assertion. But I think he has blind spots, lacks a highly evolved intuition, and doesn't appear to have much self-awareness or ability to question himself in ways that are meaningful. His mental machinery is mostly reactive and directed outward. So you have a guy that has the ability to take in loads of information, shelve it somewhat cohesively, and then chain it together with some rapidity and endurance that suits his aims. It makes for a leftist that can pull their own weight in a debate, or at least appear to most of the time, and sometimes there's a flash or two in the pan. But I think he rattles more than anything, and comes off (at least to me) as an incredibly weak thinker. But that's just my biased impression.