What do you guys think of create sub-categories (just like Tutorials and Reference) as follow:
- Data Editor
- Trigger
- Terrain

I think it'd just give more depth to the wiki while giving some kind of filters for our users.

Sounds good to me, as long as it is obvious enough.

Gosh, that was minimum one hour of editing! I've edited all articles listed in the Complete List so they contain the proper Category tags.
I've also tried to establish a convention of Bold text: Data Editor fields' names should be bold, as well as shortcuts.