Be honest - you just want it to be an even number of categories! 
Joking aside, here is a proposal that takes into account your critque:
| Super-Category | Sub-Category |
|---|---|
| Community |
|
| Operating Systems |
|
| Industry Change (?) |
|
| Help (mostly individual requests) |
|
| Market |
|
| Meta | […] |
Ad an earlier proposed “Technology” category
@paulakreuzer You said you didn’t understand my proposal for a category called “Technology”. My aim was to give the #community category a sharper profile. Thus I’d like to find a new home for these and similar topics because they do not directly concern the Fairphone community*:
- Microsoft "goes Open Source" (= acquired GitHub)
- Other phones that are fairly fair? (e.g. Shiftphone)
- ✏ List of Fairphone 2 Resellers + prices
- Lush UK chooses Fairphone from Phone Co-op!
- Light Phone 2 (e-ink smartphone lasting 5 days)
At the moment they are just “parked” in #community because we put everything there that doesn’t fit somewhere else.
Ad Developing category
I’d like to make it more visible that the developers are also part of the Fairphone community. Thus my idea to move the sub-category to the #community category.
Ad Operating Systems
If we have Help categories for the OSes, we don’t need respective sub-categories in an Operating Systems category, IMHO. There aren’t so many general discussions per OS. Plus, unlike Help topics, in general the topics in the current #software category and its sub-categories are well-described in their title and it is clear which OS they are talking about.
Ad “Industry Change” (?)
Maybe we just have to define the #fairphone-road-map category a little bit broader to also allow for (smartphone/internet/electronics) industry related topics. Then we might not need a sub-category specifically for Fairphone. It wouldn’t hurt though, IMO.
PS.: Please also let’s not forget to revise the category slugs. They are inconsistent and also quite long in the present form: #fairphone-help vs. #fairphone2help etc.
* I see the #community category more like a “meta” category, where we discuss about the community, their work, their opinions etc.