This is what happens when you tie yourself to someone else's platform. Didn't people learn from Twitter and Facebook?
As a long-term linkedin member, I never liked the company. They simply don't care about their users.
Suppliers of the data set. Without which, they are of no value to those you describe as their users.
I wonder who will be the linkedin killer. I certainly would like to see a decentralized network of websites with each project maximizing value for its customer segment, freeing that audience from linkedin choke. There is so much innovation lying dormant in the professional graphs, I can't believe we are stuck in this incredibly inefficient local optima.