Facebook is getting less interesting to me as my feed gets polluted with ever more ads. I only stay on there to keep in touch with people. I don't post much.
The various platforms each have their own strengths. Hive has no way to restrict who sees anything and may never get it. That still leaves a lot of types of content that should be public and could be earning here. It needs that critical mass of people to move over, but it could be in niche interests to start with. I know some are trying to build up urban exploration on Hive, but there are big communities for that on FB and probably elsewhere. If nothing else Hive hives you freedom in how you present your stuff.
Hive could be big in knitting or sushi or eco tourism. I don't really care where it starts, but everyone has more than one interest and once they are here they will want to do more on Hive. It's up to us to encourage that.