I had the great good fortune to learn early on that anything posted to the internet is there forever. That knowledge has guided my internet activities for twenty-five years now, and keeping it perpetually in mind has stood me good stead so far. My basic rule is simple: I don’t post anything to the internet unless I’m intending to publish it to the world at large.
So, I’m happy to post the articles and stories I write, and happy to post links to them. That information is deliberately made public. I also post about things I do (and share links to things other people write), but only with the knowledge that each such post is part of my permanent public persona.
The exceptions (commercial, banking, credit card, insurance, and medical sites) are carefully considered, minimized as best I can, and monitored so that I have some hope of detecting and limiting the harm from failures. I expect the information that I share with them will remain private—but I use the word “expect” in much the same way an eighth-grade teacher might use it when telling her students “I expect each one of you will be well-behaved during our field trip.”
Because of this perspective, I pay very little attention to the “privacy” settings of social media sites. Whatever I post is intended to be public, so it makes no sense to constrain it. I do try to keep a grip on things that I don’t intend to be public. For example, I only attach location information to my posts on a case-by-case basis.
As I say, this has stood me in good stead up to this point. But, as Bruce Schneier points out, we’re already well past the inflection point between a past when such efforts mattered and a present and future where they do not. I carry my phone with me most of the time, so my location is already known to a third party—which means that, as a practical matter, it can be known to anybody who cares enough to get the information. Cameras are nearly ubiquitous—even before drones make it possible for them to be actually ubiquitous (and social media sites have already gathered ample data to support any facial recognition effort).
Anybody who’s working on the public policy aspects of these issues who’s not familiar with David Brin’s Transparent Society work is making a mistake. Privacy has no future. It hasn’t for a long time. Transparency is our best hope for keeping this fact from making the unequal power relationships in society much worse.
[Update 22 May 2011: I found the post from 2003 where I tell the story of just how I learned this lesson, back in 1990.]