Joining Ezoic does not require you to have an AdSense account. However, if you have been banned from AdSense for violating their policies, Ezoic may not approve your application. This means that if your website was banned from AdSense due to inappropriate content or other policy violations, you will not be able to join Ezoic and use their platform. It is important to adhere to the guidelines set by both AdSense and Ezoic to ensure that your website is eligible for their services.