And Owens helped lead a study that showed that Instacart was using surveillance data to jack up prices by 20% or more based on inferences about your willingness and ability to pay (after the study was published, Instacart promised they'd stop doing it):
pluralistic.net/2025/12/11/n...
pluralistic.net
Pluralistic: Instacart reaches into your pocket and lops a third off your dollars (11 Dec 2025) – Pluralistic: Daily links from Cory Doctorow