Edit; wrote this comment before I realised this is a blog post from 2013. In 2013 I would've agreed 110% with this.

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This is one of those things that make for great post title and gets you all riled up at first but when you think about it, it's really shallow.

Most civic databases can be abused by any sufficiently authoritarian government. A homeless shelter's records may contain exactly the sort of information that could be used to get "undesirables" off the street. But those same records are useful for coordinating beds, outreach, medical care, etc. Surely the conclusion isn't that the shelter shouldn't keep records.

It seems much more useful to focus on limiting what gets collected, who gets access to it, and how long it can be retained. In other words, boring things like data-minimisation and retention laws. Somewhat amusingly, that gets you pretty close to the sort of principles behind GDPR, which isn't exactly universally loved around here.

I don't really disagree with the blog post's moral intuition. What bothers me is the emphasis on individual moral choices by the people building these systems. I've seen plenty of my peers happily work for companies that have spent the last twenty years building exactly this kind of technology, there will always be someone willing to build it. That's not an argument for abandoning personal ethics, but it is an argument against treating personal ethics as any form of serious societal safeguard. "good engineers should refuse to build them" means nothing.