To re-iterate @JammyDodger’s points, I don’t think this topic belongs in the Community Building category. This is a category for discussions about launching, building, growing and managing communities My assumption is that the category is primarily intended for people who are managing Discourse sites. I know that I stretch that quite often myself, because I’m interested in a lot of ideas related to online communities.
The OP contains a valid suggestion that could be worked through a bit and posted in the Contribute > Feature category.
The complaints about Meta’s moderation have been noted. The community category is tricky, because Meta is an obvious site to use for examples, but the category is not the appropriate place to complain about Meta’s moderation.
From my own point of view, user generated groups would be useful for these types of discussions. If discussions could occur in a group that I was free to join and leave, I’d be happy to participate in them. Other than the complaints about Meta’s moderation, I’m interested in a lot of what’s being discussed here.
I’m going to close this topic. Keeping the above points in mind, feel free to start new topics that branch off from the ideas introduced here.