Emails seem a good way to add a commenting system. Most people have an email address, and it is a well-established system.
To make public the comments, you can use a public mailing list or rebuild the commented static page upon reception of a comment (email). Of course you have to take care of security threats (HTML injection, ...)
To make public the comments, you can use a public mailing list or rebuild the commented static page upon reception of a comment (email). Of course you have to take care of security threats (HTML injection, ...)