Temp Mail (temporary email services) can be used on Discord for account registration purposes. However, it’s important to note that Discord’s Terms of Service may have been updated since then, and they could have implemented stricter policies regarding the use of temporary email services. Using Temp Mail on Discord might enable you to create an account without needing a permanent email address. However, keep in mind that temporary email services are often used for spam or malicious purposes, so Discord may have implemented measures to prevent or discourage the use of such services. I recommend referring to Discord’s current Terms of Service and Community Guidelines for the most up-to-date information on their policies regarding email addresses and account registration.