LinkedIn’s Alternate Universe
I don't care if people on LinkedIn want to marinade in their own sauce.I believe most people keep their accounts for the same reason as me, which is to maintain network of people you worked with, contacts to recruiters, to get leads to potential job opportunities and to find people to recruit. It is nice to know when your colleague changed job or is looking for new one.Other than those I completely ignore all other content.I believe people who post those messages are either pressed to get some publicity or/and misunderstand  what LinkedIn is for.