Man, LinkedIn is a cesspool. Non-stop posting of "look at me, look how well I am doing, look at my new car, look at my new job and how excited I am about it, I love my job and current employer so much"
Everyone there feels fake. I have talked to people in person about how shit their job/boss is and then they would turn around and post the most grateful post about their current job and how the company truly cares about the employees and shit like that
It's probably a great place for employers to find the biggest ass kissers, but not good for much else