The article is pretty much a joke. It argues for the analytics and processes LinkedIn can help enterprise customers with. In reality, LinkedIn really is more like a replacement for Monster, Dice, etc. Most people use it as a way to either get their resume out or for people hiring to find people.
As a user, unless I pay, the site really offers me little. Groups are kinda eh, I can hook in my twitter stream, etc. The amount of content generated beyond one's profile is significantly lower than that of Facebook. Is a lot of what is posted on FB fluff? Maybe, but people generate content and engage with the service.
Furthermore, what LinkedIn provides the user is pretty stagnant. There isn't a way to determine if someone claims proficiency in a certain skill or a certain role, how good are they actually? We've started to finally see some interesting competition / augmentations with BranchedOut (on FB, of all things) and MixTent (built a top of LinkedIn).
