At en-WP, the "uploaded files" line for Special:Statistics is a little misleading, since many new users may assume that it means there are only 800,000 files available on Wikipedia, when actually there are 62 million, just most of those are hosted at Commons. I'd like to request, following up on the on-wiki discussion, that a description be added to the line, similar to those for other lines at the statistics page. This would allow us to write something like "Includes only locally hosted files, not those in shared repositories", which would help clarify.
I'm not too familiar with the technical details, but @Xaosflux suggests it could take the form (parentheses: (statistics-uploads-desc: )) that would initialize a new message, [[MediaWiki:statistics-uploads-desc]].