Earlier quoted context omitted.
Now that I think about it, most of my complaints about LinkedIn is about the "news feed". Its full of mostly useless content by wannabe thought leaders drowning out a few posts which may have been insightful/relevant. Job search and add/message connections are the only features I have found useful.
Some companies require engagement with social media as a requirement for advancement. So you are not wrong about the wannabe thought leaders. This is where they go. Nobody will make negative comments on these posts- it's like making a negative comment about your boss in public.
That brings up another issue, that employment background checks are increasingly checking social media posts for "questionable" activity. It's already daunting enough to see that I can't express my true self on places like FB for various reasons but now it's a factor when I'm applying for work?
I think if it was voluntary, and for like a PR position or other very public-facing, it would be different but when I found out this was going on I was relieved that I basically checked out of social media long ago voluntarily where I was already very guarded about how I expressed myself.