Translations:Help:Tracking categories/16/en

Some wikis add other sort of tracking categories via some hacks, for instance itwiki1>w:it:Categoria:Pagine con errori nelle espressioni|this category which tracks pages with  #expr  errors, added through the itwiki2>w:it:Special:PrefixIndex/MediaWiki:Pfunc expr|relevant errors shown on such pages.