Anything you post online is archived somewhere and in the future likely to make a return. Just because you cannot find it does not mean someone else can't.
Many of you play a dangerous game on here with this sort of thing. I have been dealing with online stalkers for the last 10 years, death threats, people showing up at my door, strange IM's, computers hacked and more... If someone were inclined to find you, they could find many of you in a matter of hours. If I can, I know they can.
Now you probably wonder why anyone would come after you.
Why do fans/stalkers shoot and kill the performer they like? These people are nuts. They get fixated, and that is all it requires. You do not have to be famous, you just have to be. You never know what will place you in the eyes of the public, or more specifically that crackpot who comes looking for you.
I have to be more careful because of what I do and have done in the past, but trust me, even posting here has garnered me unwanted attention and I keep this entirely separate from my other online activities.