thinking about federation with platforms whose data policies one finds questionable: could there be a kind of „view only“ interaction mode?
that is, I don‘t mind seeing the content but I don‘t want my posts/info going over to that platform…
(much like RSS, basically, but without a need for me to subscribe- content can just show up organically in my TL, for example through boosts or hashtags)
I also have no problem with making the whole thing consent based so you exclude no interacting accounts (I‘d personally prefer RSS to be opt in as well)
@BeAware also, it‘s worth remembering that for anything you don‘t post followers only (or private) it might show up in my TL one way or the other without me ever interacting with you directly