We absolutely need a better platform for professional networking. A platform that's not filled with people who dislocate their shoulders trying to pat themselves on the back for some "inspirational" social media babble about the last time they managed to send an email.
I use LinkedIn as a contact list and as a way to find jobs, but I cannot stand the 'content'. I unfollow everyone I'm connected with just so I don't have to see any of it when I have the misfortune of having to log in.
Personally I think the shit posting started because people where not getting any reaction of Facebook anymore, after it turned into an algorithm driven ad pumping engine from hell. People want their posts read by other humans, and LinkedIn is the last place where this is actually happening. It's just that some people, especially those in marketing, online retail, management and HR absolutely suck at communication.
LinkedIn is great as a contact list and for job hunting, if you're a technical person. The same shit posting marketing people can't even sell themselves. If you have two people posting that they are looking for a job, and one it technical and the other is marketing or HR related, you'll see a clear different. The technical person can have multiple interviews lines up in hours, the marketing person will get comments like "Repost", "Someone has to know someone" or "Hire X, their great", but no one actually have a job.