How will/should Discourse you deal with a very large number of categories? I see a dozen categories in the category combo box now. If I think about these mapping roughly onto subfora in my existing forum, this is manageable, as we have about the same number of subfora as Discourse has topics.
My mind boggles at how this would work for a site like ConsimWorld, which has a tree of subfora five or six layers deep with thousands of leaves.
Background: ConsimWorld is devoted to the discussion of conflict simulations, i.e., wargames. Each of hundreds of games has its own subforum, many of which contain thousands of posts each. So there’s been a colossal amount of traffic over the years. I would not be surprised if there were a million posts across the whole site. (CSW uses the most shockingly bad forum software I’ve ever seen. Each subforum is a single thread. I don’t mean that the forum is unthreaded, I mean that when you have 2000 posts about a single game, you have a sequence of 2000 posts to page through. Truly awful. Nonetheless, CSW is the best place on the net for this kind of thing, so the spectacular badness of the forum hasn’t killed it yet.)
So, returning to the issue of topics: Here’s an example of one subforum from CSW:
Boardgaming > *INDIVIDUAL GAMES AND GAME SERIES Discussion > Era: World War II (INDIVIDUAL GAME) > Eastern Front > Ukraine '43 (GMT)
This is the branch for the game Ukraine '43. That would suck to have in a combo box at all (due to its length), let alone having it be there along with a few thousand other items. So, hypothetically, how would/should Discourse handle something of this sort? The existing category system doesn’t look up to it to me. Maybe a tagging system, like StackOverflow has would make more sense in this situation?