If you recall reddits growth many of their communities evolved as offshoots of a single generic community. This made it easier for people to see discussions they normally would not get involved in, and once the posts in a similar category reached critical mass it moved to a sub Reddit.
I think people are recreating their niche communities here but they are floundering since the user base is still pretty small. Maybe it’s best to post to the “big” communities until the time is right to move to smaller, targeted communities?
Yeah you’re right, there are already a ton of duplicate & niche communities spread across different Lemmy/Kbin instances. It’s strange when someone decides to go create yet another niche community in another instance when there’s plenty of others on the same topic with barely any activity of their own.
I’m also seeing a lot of accounts creating communities without doing anything else afterwards. Communities won’t succeed if the creators/moderators have no interest in posting anything or even updating their own sidebar description.