>>769-771 (defun my-navi2ch-article-delete-null-chars ()
(save-excursion
(goto-char (point-min))
(while (search-forward "\0" nil t)
(replace-match "" nil t))))
(add-to-list 'navi2ch-article-get-message-list-hook
'my-navi2ch-article-delete-null-chars)