LinkedIn is doomed the moment real competition appears. People only use it while grimacing with disgust.
I'd be very careful to buy stock at LinkedIn. I'm not surprised there's high engagement as LinkedIn is full of dark patterns designed to drive engagement but this is bound to backfire sooner or later, many of which I'm sure you've all read about here already if not experienced. There are only so many frustrations users are willing to put up with.
All I can think of is walled gardens need upkeep
LinkedIn is the most amazing business node graph out there - for a professional person online it has everybody and uptodate. But there is a wafer thin business model if they played their hand brilliantly - and they play it like a drunk Captain Hook trying second dealing in Vegas.
I just hope that when / if it all collapses we can club together and transfer out the edge connections.
Does this dilute existing LinkedIn shareholders?
Stop giving them your money. Let them collapse like capitalism intends.
At a P/E of 935, I would also sell all the shares I could.
http://finance.yahoo.com/q?s=LNKD