Previously encountered bug operations: 1. Self built tokens for deposit taking: Users create a token 2. Sub account withdrawal of Alpha: Using the sub account mechanism to collect Alpha rewards multiple times, bypassing restrictions 3. Stable coin mutual brushing arbitrage: Creating false activity and obtaining rewards through brushing volume trading between stable coins 4. Self created coin brushing reward: Send a coin named ABC with a price of 1 ABC=3000 USDT, then pool it with platform coins (such as ZKJ) and repeatedly brush the Alpha reward through the trading pool