I have a LinkedIn (as a professional with a career that benefits from the kind of networking & discoverability that LinkedIn provides).
It’s such a weird kind of parallel human society. Where Facebook et. al. incentivizes you to display your cherry-picked highlights, they still have roots in our basic social life.
LinkedIn enhances something different, a more Patrick Bateman persona, a corporate drone trained and certified in the latest processes.
I’m sure Rob could state it much better.