While communities were a good way for people to find more of what they wanted, it did split us all up a bit. I remember before communities when it was all one long feed you'd have all kinds of people appearing in your comments even with some curiosity or something to say.
But yeah, communities did put us into our own little bubbles and there is the negative side to that where people stick to them a bit too much. And as user numbers shrink, naturally the more niche stuff gets hit harder. I do hope it'll change but meh, I don't have high confidence in Hive being what we all thought it would be after almost a decade of life.