By the way, it's not random Internet users or the NSA I'm bothered by the idea of - they can pizza houses all they want, who gives a shit? It's more about future family. I'd prefer to have an online identity that can be "burned" to all but the most tech savvy. No one except the most creepy persons wants to stumble across a random link to all the stupid shit their husband or wife, much less their kids or parents, did as a dumb teen.
Eh, not really. Thing is, it's that mundane day to day activity that lets you know who a person really is. There comes a time in most peoples' lives where they are searching for a feeling of kinship; they start putting together family trees and hunting down old stories of their ancestor's activities, especially those they never had a chance to know personally. Would you want your kids reading it? Maybe not. But your grandkids? Or great grandkids? I dunno, I think I would want them to have something to find in the archives of The Old Internet from just after the dawn of the Age of the Electric Computer.