To many people, LinkedIn is a mere social network, where people with jobs comment on certain posts, spend time, endorse each other, and brag about their achievements. That is not a bad way to put it. But imagine this; imagine you walk into a large room through a blue door, and in this room, there are CEOs, top company executives, specialists in various fields, people just like you, and many other people who are more advanced in their careers than you are.
If you can imagine yourself in that room, you will realize that you have a lot of choices; keep quiet and stay on your own, talk to people just like you, network with individuals more advanced in their careers, perform quick interviews with top executives or just leave the room to go do something else.
If career growth is important to you, you will quickly see this as an opportunity to improve your career. LinkedIn is that large room with the blue door.