This is a related question that maybe will help some other people to volunteer.
I don't see a way of creating new communities here. I was considering the possibility of creating communities I will miss from Reddit and moderate those. But I guess this goes hand by hand, right?
You are a moderator of the whole instance, not just one community. And then to create a new community you have to have admin rights on the instance?
That makes a lot of sense, thanks.