What is a good put call oi ratio?

Could you please explain what a good put-call open interest ratio is, and why it's important in the world of cryptocurrency and finance? How do investors use this metric to make informed decisions about their portfolios? What are some potential pitfalls or misconceptions that one should be aware of when interpreting this ratio? Additionally, how does it differ from traditional financial markets and what unique insights does it offer in the context of cryptocurrency trading?