For me this kinda misses the point of social networks. I don't need a special site to stay in contact with my actual friends (nor could I convince them all to j

For me this kinda misses the point of social networks. I don't need a special site to stay in contact with my actual friends (nor could I convince them all to join my site). I also don't need something to talk with total strangers. I want something in the middle, a site to explore the fringes of my social graph. Look up people that I barely know. Understand who is connected to whom, who is a friend of a friend. And have a low-key way of staying in touch with people who are not in my closest circle. I think this was realized with Facebook in the late 00s (or in Germany, StudiVZ). It was literally a people's directory where you would enter information you wanted to publicly share, and basically "everybody" was there.