LinkedIn starts to feel a little like Facebook years back. If you don't "engage" with the platform it will start throwing random posts at you.

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.

Same. I treat LI as a host for my CV and as a job board. Zero interest in it as a content publishing platform or social networking platform.