Maybe that's not the right word, it's too pejorative. What I mean is looking at someone's private life without them narrating it to you specifically and being aware in real time that you're looking at it. I'm not claiming anything negative about its ethics or similar. That's not my point at all. I'm just asking whether it is conducive to real social connection and whether it really produces and maintains the kind of ties that it supposedly maintains or if it's an illusion. Sure, it's nice to reconnect with a long lost classmate or "interesting" to see the baby pics of that one college friend you last talked to in 2012. But to what end exactly? If it actually leads to regular IRL hangouts that's great. Otherwise it's just some kind of nostalgia trap.
> if I don't want anyone to see the post I will not post it or limit its visibility
Yes, and nowadays people tend to share less. Exactly because in the 2000s these instincts were less sharp and then people realized that a wider circle of people is looking than they thought and things remain online for long.