Moin moin, wouldn't it be better to write out the abbreviations in the i18n files? It coult used the plural forms. For example the param "categorytree-num-pages" coult be something like {{PLURAL:$1|1 page|$1 pages}}. Or {{PLURAL:$1|1 file|$1 files}} for "categorytree-num-files".
If so, someone coult arrange it?
Paul