@elduvelle @maegul @Homebrewandhacking I think it would be really nice to do the same thing as I'm thinking with replies: when you search for a hashtag, go out and find more posts from other servers using that hashtag. the problem is "which servers" because even our instance knows about thousands.
Masto stores some notion of trending tags for both accounts and instances, which could be one way of doing it: go and grab posts from the top-n instances using the tag. or maybe even give a box to someone like "here are the servers you interact with the most and how many uses of this tag they have, select which we should go fetch"
it seems fine to me from a privacy POV because the act of using a hashtag is to make a post be discoverable, and followers only posts wouldn't show up in the search.
#fetchallreplies #fetchalltags