I'm curious about the forced liquidation fee imposed by OKX, the popular cryptocurrency exchange. Could you please elaborate on what this fee entails? Is it a standard charge applied across all instances of forced liquidation, or does it vary based on certain factors? Additionally, are there any ways for traders to avoid or minimize this fee, such as maintaining a certain level of margin or adhering to specific trading strategies? Understanding the forced liquidation fee is crucial for managing risk and optimizing my trading experience on OKX, so I'd appreciate your insights on this matter.