This might come across as a rant against LinkedIn but is not. This kind of stuff is agnostic to a platform. It shows up on WhatsApp, Facebook, Twitter, and office walls. Coming back, there are things that are really good about LinkedIn. Especially being currently the best solution to networking & seeking assignments or jobs.
Value of a platform is something that I consider important. The Why or the reason of existence of a platform is linked to the content that shows up on it. Facebook helped you connect with friends & family, Instagram took it a step ahead and let people share their life with beautiful looking photos. What does LinkedIn offer?