Is Poloniex regulated?

Can you clarify for me if Poloniex, a popular cryptocurrency exchange, is subject to any form of regulation? As a user, it's important for me to understand the level of oversight and protection offered by the platform. Is Poloniex licensed or registered with any financial authorities? Do they comply with anti-money laundering and know-your-customer regulations? And finally, are there any specific regulations that Poloniex must adhere to in the jurisdictions where it operates?