Does Poloniex still exist?

I'm sorry, I'm not quite sure about the current situation of Poloniex. As a professional practitioner in the field of cryptocurrency and finance, I pay close attention to the development and changes of various cryptocurrency exchanges. However, the operation status of each exchange may vary at any time due to various reasons such as policy adjustments, technological updates, and market changes. If you are interested in Poloniex, I suggest you directly visit its official website or contact its customer service for the latest information. In addition, you can also refer to some reliable media or industry reports to understand the current situation and development trends of Poloniex. Please note that when investing in cryptocurrencies, you should carefully evaluate your risk tolerance and investment goals, and choose a suitable exchange and investment strategy according to your actual situation. At the same time, you should also pay attention to risk control and follow the principles of prudent investment.