007. Adjust the system maximum leverage to 30X

The current maximum leverage of the system (BTC/BUSD, ETH/BUSD) is 10X, and the proposal aims to adjust it to 30X

Pro

1. The APY of position mining will increase by 3 times
2. Capital efficiency goes up. The same margin can support more positions, and it is easier to increase the system position volume and trading volume

Con

1. High-leverage users are more likely to trigger liquidation. The margin rate of 30X leverage is 3.33%. When the margin rate reaches 3%, it will trigger automatic deleveraging. Advanced position management capability is mandatory
2. System risk control is more challenging. Big market fluctuations can trigger serial liquidation, resulting in system net loss, insurance pool depletion and even bond issuance