Thanks a lot for writing this up, that’s a great article!
What do you think about offers like circle, tribe, or mightynetworks? I’ve seen them labeled as ‘modern’ community platforms in some articles. Then Discourse, Vanilla or nodebb were labeled ‘traditional’.
In my view they claim the community terminology but they mostly work like gated social networks, with a focus on broadcasting content and engaging users. It seems they are used to gather a crowd of followers, but not so much to support many-to-many relationships.