Traditional multi level hierarchy vs flat discourse hierarchy

[PackElend]

1. 3-level category hierarchy

   @angus

   with mutli-tag intersections route structure

   is there an example? I don’t know it would look like and where the code is added.
   Where and how is the grandparent_category introduced as there aren’t default tools to do it via the UX.
   It that somehow related to Pavilion? It isn’t, is it? The code above would alter the categories landing page, wouldn’t it?

2. Multi-tag intersections sound good although they

   @angus

   are only possible site-wide; not at the category level, i.e. there aren’t routes in standard Discourse to show a topic list with topics in a specific category and with more than one specific tag. If you wanted this, you’d have to add the route.

   that would may require to skip categories as the main navigation route and build a customized landing page based on that tags, something I asked in Display tags by tag group - #22 by PackElend
   That would require a custom theme, would it?

3. only tags

   @angus

   For example, you could exclusively use tags to represent the four levels.

   yep, that is the idea of how to start, anything else can be changed at a later stage.
   As long as we ensure proper tagging anything should be feasible, depending on time and frustration tolerance :), isn’t it?
   The hierarchy would be as follows

   1. level: local nodes
   2. level: continents
   3. level: nations
   4. level: cities

   In the beginning, we properly use only local nodes as category and a subcategory per city*.* As soon as there are too many nodes we would switch to local nodes and nations, hoping that we are going to create our own theme to make tag-based navigation somehow more appealing (e.g. same boxes for tags as for categories as mentioned in point 2).
   Moreover, I hope we get along with my upcoming feature request, discussed in Locations Plugin as that could be used in many categories/tag groups .

   The most important thing, that we get Topic auto tagging running as soon as possible otherwise we will have mess before we even begin at large scale
   In addition, we need to introduce additional drop-down boxes in the navigation bar, which are filled with tags depending on the selection. I hope it is not a big deal mix sub-categories with tag-defined drop-down boxes.
   Is it simple to achieve something like the layout below?

   1. low node number layout
      
      
   2. higher node number layout
      
      

4. merge boxes
   Last but not least, it might be helpful, can you merge boxes like: