Doctorow: How Your Creepy Ex-Co-Workers Will Kill Facebook

Cory Doctorow's article in InformationWeekdescribes how Facebook and other social networks have built-in self-destructs: They make it easy for you to be found by the people you're looking to avoid.

I've personally had the very odd situation of having to un-friend someone who had a different idea of how to treat my own "Facebook friends" than I did. I ended up hearing later that this was taken as a declaration of war, and this person appears to be going around defaming my character because of it. This makes me much more careful of who I add to be a friend in the first place.

I'm not quite at the point of abandoning my Facebook ID, but I agree with Cory that it won't be long.