Prediction markets need mandatory cooling-off periods for high-stakes events. When we ran internal markets at my previous company - employee count 12k - we saw death threats within 48 hours of any market exceeding $50k. The pattern was consistent: above that threshold, someone always had enough money at risk to abandon civil discourse. We capped individual positions at $5k and threats dropped to zero. Polymarket's anonymity makes this worse - real money plus pseudonymity equals harassment.