I have been on linkedin for a few months now and found some discussions useful, but I am only connected to people who (a)I have physically met in person (b) went to uni with or (c) worked with.
I would probably feel a bit awkward adding people from here to start with, but then again, why the hell not. You only live once.
It’s kind of like approaching girls when you’re in junior high. The first one who looks at you funny and says “what do you want” devastates you, but after 3 or 4 you start to not care what they think. A girl asked me what I wanted in high school when I went up to talk to her and I said “can I have the rest of your sandwich?”.
Be comedy confident and eversbodies will love you.