OK, so here is a "vision thing".
Forms make it possible to create structured wiki pages that anyone can edit. It creates a real separation of tasks between the person designing the form and the person entering data. Forms are easier to use than even the simplest editor.
Our design for forms (which I'll explain in more detail later) also adds a "pagepath" field type, which lets you attach the object to a classification tree that consists of a tree of parent-child wiki pages. For example if we have a database of diseases we can create a hierarchy of symptoms, and then attach the disease to these symptoms. Or, we could create a hierarchy of regions and attach to that.
The wiki part is: collaborative creation of new objects, and of classifications. It should make it possible to organize knowledge on practically any domain, on a huge and very cheap scale.
That's the idea.
What I'll do, when we have the forms working sufficiently, is start a proof of concept so we can develop the navigation and overall structure. Then we can turn that into a template site. And then we can create lots of communities, cataloguing the world.
Was that kind of what you had in mind, or do you want something less insane? :-)