I've been trying out this organizational method for about 2 months now. tl;dr - everything falls into a Project.Area.Resource.Archive (sub)folder and the ideal is to rotate things through as soon as they're finished to Archives where you can ~forget about them. What I appreciate about it is how its recursive, so you can organize individual projects according to the PARA rules.

I agree with the author that its difficult to decide between Areas and Projects and appreciate his take that all Projects belong to an Area - insightful. One of the changes I've made to the system is to refer to Resources instead as Records. I like to take daily notes and keep to-do lists, summarize/link articles etc which usually have some type of temporal resolution and may not always fit in a specific project/area. So far I like it better than my old method of categorizing things by date and type and it meshes well with my fairly simple Obsidian environment.