@blag Yeah I think the mechanism is here already, just a matter of presentation. Instead of "following" and seeing posts as combined in the home timeline... we show it as "join" and have a dedicated timeline, where every post / interaction is directed to the group by default without needing to tag it🤔
@ayo I believe kbin's magazines function exactly like this, where each one has it's own separate timeline of microblog posts. Posts can be made directly to a magazine from kbin or collected from elsewhere in the fediverse based on a list of hashtags the magazine's moderator curates.