According to http://www.mediawiki.org/wiki/Manual:Article_count
the article count can either be link count or comma count.
Wiktionary (in English, Swedish and some other languages) needs to
count all articles in the main namespace that aren't redirects.
To this end, bots add a fake link to all pages, so they should be
included in the link count. This is of course highly inefficient.
MediaWiki needs another option that counts all articles,
and this option should be activated on Wiktionary.