What you said in number two makes it clear you don't comprehend the problem, at all. I assume that this will be worked out in time. My comment was never meant to bash anyone, so stop taking it personally or some such shit.
This is just how I talk, something doesn't work, so I will wait until it "gets its shit together".
The solution exists. There is a client called blogstack. It is like a Nostr version of substack. No one really uses it and it needs work if anyone is going to but it "works".
In that I can connect with my keys, if any of my followers do so they are connected to me when they do etc. But when I post an article it does not show up in my primary feed. So it can be done, I guess.
Why do you go try to use the freaking thing and then may be you will understand the problem. It isn't that I don't want people on iris or snort or whatever seeing posts to groups, it is...
1. They likely do not want to, communities are niche specific.
2. The way it displays, I would call them disembodied notes. Consider it like comments with no reference back to the original note. But worse because they also don't have any indication that they are related to a community.
Again try using the damn thing and may be. you will understand.