I'm always conflicted on these things. For privacy's sake, I don't want every little thing I posted on my angelfire page many years ago to be a part of the world's permanent record on me. But I can't help but feel we are losing a lot of valuable information about ourselves when these things go.
I dunno, maybe if we had a way to keep it around but under a lock and key. Then we could release our incessant teenage babbling's when we think they are "cute" rather than "just crazy enough" to draw the ire of some h.r. sheriff.