Enhanced Verification: Require rigorous authentication methods for login, such as mobile phone verification, to prevent multiple accounts.
Market Design Changes: Adjust the market mechanisms to reduce the incentives for creating alt accounts, such as delayed payouts or market cap thresholds.
Strict Penalties: Implement high fines and punitive measures, such as demotion from badges and trustworthiness scores.
Account Bans: Enforce a strict policy of banning accounts found to be involved in manipulation.