Last modified: 2005-01-14 04:17:58 UTC
On Dec. 16 on http://en.wikipedia.org/w/index.php? title=Talk:Excretion&action=history a user was able to rollback the changes of the page's only editor to "previous version by MediaWiki default", which in this case was {{mediawiki:noarticletext}}.
Any user can click the "edit" button, replace the article text, and write something in the comment that starts with the word "Reverted".