Not sure how you got the idea I created "fake friends and superficial relationships," I think you misread my comment. I intended to dismiss that plan because it seems the norm on LinkedIn -- "connecting" with people you don't know, haven't worked with, for the sole purpose of creating a fake network. My LinkedIn network consisted entirely of former colleagues, customers, and a couple of recruiters I have worked with. Turns out I can stay in contact with them in person, by phone, or with email.
Maybe it comes from my age, but "connecting" or "liking" someone on social media doesn't equal "meeting" people, cool or otherwise. A referral is a referral, perhaps, but I think one from someone I worked with or for who can vouch for me counts for a lot more than one from someone I "connected with" on LinkedIn.
My personal address book keeps my "network" safe from anyone harvesting them from my LinkedIn profile, another bonus.