Update Commenting Settings
Once Commenting has been enabled, you can return to the Community tab to change the commenting settings at any time.
To update commenting settings:
-Navigate to the Community tab
-Click on Browse on the comments section
-In the Setup area, you can edit reading and writing rules
-Click Save to update your commenting settings
Reading Rules and Writing Rules:
-Everyone - Anyone who visits your website, without access.
-Only Users - A user who has a login & has registered, but does not have access.
-Only Users with access - A user who has registered and has access to this content