Expecting a one to one drop in network swap seems like a consistent barrier, no shade intended.
I don't agree with it but I guess I get it. My feed has a little tech but mostly science, authors, artists, and ground level activists. But almost no one I already knew, and of them one is a roommate and one is an amazing but very local author I already supported on Patreon. I'm actually meeting new people and actually getting to know a lot about them.
It's much more interesting to see individual real humans doing things to make the world better than to just read them commenting on it.
I'm kind of done following big names personally. The added value is overblown relative to how awesome strangers actually often are, plus strangers don't have a communications team filtering out anything too interesting.