I want that implemented right now, why haven't i seen that before?
If categories would not be chained by Genre rooting (but placed instaed under Themes and/or Elements - i personaly dont see reason for making another 2 root categories, but maybe it is one) - there could be added more interesting and useful cats and cats tree could grow fast and large and eventually bring us some fruits (or kittens). Now its rather impossible (already even as simple category as Cooking was problematic under which genre add it).
If we want to have categories usable for differrent purposes, than they have to be large in numbers or we will stick to some small number of them - which was the point from we started.
For displaying/changing categories some filtering could help, like adding to each category weight (category importance?). I think 3 levels would be enough:
*** Very important (those are showed by default in anime page like old genres):
only general genres (all under Genre tree reduced to containing only real genres, but not everything theme/object/attribute related to some genre like is now - all this should be moved somewhere under Themes)
Horror / Thriller
and some of subgenres like
and Content indicators
(and thats all, maybe some very, very important category (eg: 18 restricted) can be picked by mods from others roots and be added to this list)
** medium important (showed in anime page if user sets this in prefs, showed by default in add/show category pages, may be used used in Adv search)
- main Themes / Elements cats and mod-selected interesting categories from Characters / Setting / Audience / Themes / Elements / ...
* low important (showed only in display of all categories, hidden by default in add/show category - may be another 'add/show all (including low important) category' page)
- all others
Showing cats in anime pages could then in tho (or three if there is Content indicators) lines
Genre (only cats under Genre root)
Categories (all other Very important cats, medium important cats, but only
first xxx (5, 10?) of them, if more then '...'.
Content indicators and 18 restricted can ce added in red if they are added.
Example (Bleach), assuming that Cats, Shinigami as interesting cats have medium importance:
Genre: Action, Comedy
Categories: Shounen, Cats, Shinigami, Super Power, Swordplay, ... [show all]