Ironically I created a LinkedIn again after starting this job, I think mostly to flex on my exciting new job and measuring myself against my peers from college, while some small part of me also thought it could be important for networking. If you really want to keep in touch with peers from college you will find a better and much more genuine way of doing so. If you want to network maybe it can be a useful tool but I'm not sure stroking each other's ego is the best way to do that.
Once again I was coming to the conclusion that it's a useless and pointless platform (like most social networks, but that's another topic). My feed right now is nothing but cringe memes, humblebrags, and weird flexing. Thanks for bringing this to my attention, I think I will delete it for real this time.