I'm pretty sure it's a pipe dream to have that feature in a social network that matters. We're pretty well past the era where non-commercial social networks cou

I'm pretty sure it's a pipe dream to have that feature in a social network that matters. We're pretty well past the era where non-commercial social networks could grow much past the curiosity stage, and commercial social networks need a way to monetize themselves. Since asking users to pay to join a social network is a non-starter that leaves ads as the monetization mechanism. It's easy to build what you describe from a tech standpoint, very hard to do so from a social network standpoint.