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?
One thing we need to break into a billion tiny dust like pieces is the idea of “Super Moderators” who control hundreds of different boards . This idea lead to the group think that infected Reddit , because when a “Super Moderator” succumbs being prejudiced then it can effect the entire site , either directly on sites the now abusive “Super Moderator” deletes all posts that challenge their prejudices , or indirectly via a chilling effect when the abusive “Super Moderator” bans people from ALL of the subreddits they control, just for interacting with subreddits they disagree with , regardless of the content of those interactions , and with zero hope for appeal since any attempt at communication will be met with silence and a mute.