CommentForm final class

The comment form's submission with plugins loaded (wp_handle_comment_submission), in the order the reference runs it (contracts/runtime.md "The comment form"): a reply to a comment still held is refused; the post is looked at, each refusal with its action (comment_id_not_found, comment_closed, comment_on_trash, comment_on_draft, comment_on_password_protected) and pre_comment_on_post when it takes comments; the signed-in user's own name and addresses replace the form's, or a site that requires sign-in refuses; the required fields, an empty comment (allow_empty_comment) and the column lengths are checked; then wp_new_comment stores it, where preprocess_comment, the duplicate and flood checks and pre_comment_approved have their say. A refusal is a WP_Error whose data is the status the form answers with; none means a blank page.