It reminds me of the style that books like Winnie the Pooh use, where Important Concepts are Capitalized to make them Stand Out from The Alternative. I do it myself occasionally! But, like, I think the weirdness with the way Chris uses it is that his idea of Important Concepts (see, there's an example right there, it's like that these Important Concepts are so much more important than plain old regular important concepts) doesn't really match up with anyone else's, so it comes across as just being random.
EDIT: I found some related stuff on another forum I frequent. Several members (including me) spoke in a similar manner and one user asked why, leading to several people trying to explain it. This was the administrator's explanation: "What these people do, as far as I've seen, is capitalizing for emphasis, as a way of transferring some of the implications of uniqueness and importance of proper nouns onto concepts that aren't. So, for example, "I don't really think that's an important thing" vs. "I don't really think that's an Important Thing" is the distinction between merely saying you don't think something is important, on the one hand, and implying there is a special category of things called Important Things and you don't think this is one of them, on the other. In the latter scenario, it may be somewhat important, but it's not important enough to be considered one of the Important Things." Another user wrote "There's a certain kind of emphasis that's appropriate for Capitalised Things. It's kind of visual shorthand for when you're careful to enunciate."
