Um, the public comment form lists first and last name as required fields (with address and phone number optional), then at the bottom includes this warning:
"Do not submit personally identifiable information through this form."
The form gives the option to identify as an individual, an organization, or anonymous, and below the selections gives this note: "Note: If you choose to identify as Anonymous, the option to enter your email address for submission confirmation is not available."
"Do not submit personally identifiable information through this form."