[user568439]

Full of people sucking each other BS. And then recruiters unable to understand the most basics of a profile.

Nevertheless I update my own from time to time, it can still be useful if you navigate through the garbage. Also it helps me to cross-check a bit some people if they have a contact that you both know and you trust.

More than once I encountered people with 100% fake profile and fake work history. Maybe LinkedIn should only allow to add that you worked somewhere doing something with some kind of verification process.

[seattle_spring]

I've lost count how many first-line engineering managers I've actively worked alongside change their LinkedIn title to "Engineering Leader" or something like that. They'll be a manager of 6 ICs in Org X, which itself is comprised of 400 people, but on their profile they'll put "leading Org X". It's some of the clearest evidence I've seen that LinkedIn is toxic sludge.