Yes, the example was a bit extreme, but I was trying to say that no good ever came out of social networking for me, only bad. Again, I don't need to "network" to land decent jobs, that's what references are for. Not socially networking also helps me weed the voyeurs and petties out of my personal life.
I've mentioned this before, but there is a lot that can be inferred even from a private facebook profile. An example - I don't social network, but my ex girlfriend did. Even private facebook profiles show a name and a picture to the public. Searching for her name + "facebook" on Google led me to her profile, and through the changes to her profile pic over time, I was able to (properly, verified later without asking through conversations with her) determine when she got a new puppy and when she broke up with her boyfriend.
Knowing that she didn't have a boyfriend, we became intimate again, and I told her about how I brought her only cat treats(not bringing dog treats) in a past visit even though I knew she had a puppy because it would be creepy for me to know she had a puppy then. I also told her that I used the same tactic to know when it was a good time to flirt with her. She giggled at first, then started to become angry. "It's not fair!" she said. You can stalk me online, but I can't stalk you?
Creepy? Maybe. Hypocrite voyeur? Perhaps. But not nearly as creepy as actually having a Profile and spending my workday leering at scantily-clad friends of friends online and sticking my nose all up in their business.