Thanks for the feedback! This is actually covered in the documentation within the template:
"2. Access
"The ACL in the template is the suggested configuration. As you may know, non-authenticated web users in Domino are logged with the user name "Anonymous". As such, this user should be in the ACL if you want standard wiki access to your site. Give "Anonymous" Author access, with the right to create documents. You should also select the [WebUser] ACL role for this user as this will allow all web visitors to edit unlocked content."