I really dislike how LinkedIn tries to get you to put your full CV online. Yeah, you don’t have to but it looks bad to have an empty LinkedIn profile.
The trigger for me to close my LinkedIn account was that my then boss asked why I had deleted my CV from LinkedIn. In a bullying tone that implied I had something to hide. Which wasn’t true, I simply never had posted the history of my job positions on LinkedIn because … I think that’s rather private info that I only share when I apply to new jobs. So there really is social pressure to share more than you want on LinkedIn.
That’s different with my personal website. There, I have full control over what impression I want to give to visitors and what information I want to share.