This week’s Taboo & Repugnant Roundup engages three distinct items that surface recurring anxieties about morally charged exchanges. The post opens with a critical response to a recent guest essay in the New York Times that warns of the dangers of prediction markets. I argue that the essay recycles familiar objections while glossing over what prediction markets actually do. The roundup also links to a Market Design discussion of Organ Attack, a commercially released game billed as being centered on organ harvesting. Finally, it includes a short video by Alex Chan at Harvard Business School explaining how economists think about market design in organ transplantation.