One of the strengths of Obsidian is that it can be thought of as a toolkit for building machines for thinking. But this strength can be a challenge when you are first getting started. Without an inherent structure, it can be difficult to know where to begin. My advice to anyone just getting started is always going to be this: Just start making notes, make links and tags liberally, and see what structure emerges to suit the way you think (feel free to disagree with me, but please do so over at K...
I downloaded the sample file and played around with it a bit. Forte’s P.A.R.A. system seems interesting for the getting things done (GTD) crowd. The IMF system seems generally useful as a way for categorizing and tracking things. So too, the idea of “Maps of Content (MOC)”, but in reality, it’s just a clever name for something I’ve been doing for ages with OneNote.