Respectfully, I think you're being a bit naive. At the moment, the evidence points to Instacart _not_ being the kind of company that will respond to "incentive to change policy", but that they _are_ a company that will commit wage theft. Pull the ripcord, delete accounts, tank all the metrics (MRR/DAU/WAU/MAU), and force the company to change or collapse. Subtle hints won't be effective here, as the response their community support indicates.