The OP site is down so I don't know what they are citing as "creepy"... but I never considered LinkedIn to be a social network. It has always just been a professional network. It is my always on, mostly up to date resume. It has the who/what/where/when of my employment history. I have only accepted connections from people that I have worked with (and even then only those I actually worked with... not just anyone that worked at the same company but does not actually know me in some way) or friends that are in similar fields (and the rare cases of recruiters I've dealt with regarding employment). It actually bothers me that people use it to post twitter/facebook style status updates. LinkedIn is the last place I would think to read about someone's breakfast choice... but I've seen those updates before.