Please add the following settings, regarding automatic users categorisation, for the extension Babel in the greek Wikisource (elwikisource).
Community consencus is located here.
'wmgBabelMainCategory' => array( 'elwikisource' => 'Χρήστης %code%',
and
'wmgBabelCategoryNames' => array(
'elwikisource' => array(
'0' => 'Χρήστης %code%-0',
'1' => 'Χρήστης %code%-1',
'2' => 'Χρήστης %code%-2',
'3' => 'Χρήστης %code%-3',
'4' => 'Χρήστης %code%-4',
'5' => 'Χρήστης %code%-5',
'N' => 'Χρήστης %code%-M',
),