I believe this is called the "Robert Scoble"-effect. One could liken it to social media spam: I don't want to know Robert Scoble, don't find him notable, yet his name appears everywhere.

Such people know how to insert themselves in the daily conversations and can count on the support of their followers to carry their views far and beyond. Most of the time those views are not much more than a catchy social hook. You Googling his name and reading this reply will likely cement Robert Scoble in your brain for a while longer.

I find it an interesting, albeit at times annoying, phenomenon. Like the Quora drama (in which Scoble was able to permeate into a lot of topics):

http://scobleizer.com/2011/01/30/why-i-was-wrong-about-quora...

http://www.quora.com/Dan-Kaplan/Sorry-Scoble-Quora-is-not-yo...