Step 1: a comment on Facebook observed by a Wired intern leads to a probe of the guy's friends and recent groups.<p>Given the latest spritz of "I'm leaving Facebook" posts on HN, this is a coincidentially relevant tale of how it was used to track somebody down against his wishes. Even more interesting was that the timing of his profile deletion was an indicator to Wired that he was involved in something abnormal.<p>Some of you seem to regret ever opening a Facebook account; you can count Hogan solidly among your numbers. This story is a memorable counter to the claim that in the new era of social networking, people want everything to be public all the time. Perhaps you might not care too much about your privacy, but one day might come along where you really need to and it's too late.