Yea it's going to take a while before some of the communities get going.
I think at this point, each community is going to take a little bit of work with the other spaces where people for that niche are gathered. Having good quality content here, setting up a sister subreddit-community thing, etc.
Feel free to advertise your communities here:
[email protected]
I requested the community a few days ago to get it rolling again. It's much harder to find and discover communities compared to Reddit, so communities need a lot more promo than they would have otherwise.
It doesn't have to be your community, and you don't need to say a lot. You can also just stay subscribed to see the cool communities that get posted.