The LinkedIn profile is not for the hiring manager. Why would you look at it? It’s just a regurgitation of what’s on your resume.

The purpose of LinkedIn for most people is to keep their business contacts and to look for jobs. Of course some use it to appear to be a “thought leader”.

Do you think just because you don’t use LinkedIn to apply for jobs no one does?

This is like the old Slashdot meme “I haven’t owned a TV in over a decade. Do people still watch TV”?