Sat Feb 01 2020 - ...
How to Allow Anonymous Comments With FastComments
By default FastComments requires an email to comment if you are not logged in. We use this email to automatically create an account for the user and let them verify their comment. In order to allow anonymous commenting you just have to create a customization rule. Define the domain, and optionally page, that you want to allow anonymous commenting on.
This means that you can control on a page-by-page basis where you allow anonymous comments.