it's true that Hive's rewards system means that some people become intimidated and believe that they cannot compete or that it will be too hard or a waste of their time
I had an entire post talking about that problem. While it is still true, in my opinion. Someone pointed out that "If you build it, they will come", a point with which I agree.
That's the essence of what @thisismylife and I are trying to do. Filling missing spaces/communities can be a great promotional tool in itself as from personal experience I have seen people not opting to join would do so because they don't find their niche.
This will also coincide with another community set to be there solely to be a guide to all the active communities, making access easier. So many people are not aware that the type of community they're looking for already exists.
I have actually spent hours going through all the communities and categorizing them, we have over 400 active communities (Based on pending rewards at least), so I think the guide we're working on could serve as a great meet-up point that will not only shed light on existing communities but make creating new ones more purposeful and focused.