Last modified: 2011-04-14 15:12:55 UTC
MediaWiki:Contributions is both a special page title (1) and a navigation link on user-pages and user-talk-pages (2). This is not suited for some languages, because wording must be equivalent to: (1) Some users contributions (2) This users contributions respectively. Even more complicated, there should be a difference betwen the special page form only asking for a user name or ip address on special:contributions (1), and the listing of someones contributions on special:contributions (3), an english equivalent would be: (1) Some users contributions (3) Contributions of a user /or/ (3b) Contributions of user someuser to be understood in the way that "some user" needs to be unspecific, while "a user" has to be a specific wording. The (3b) version could likely be used instead of (2), at least in all languages that I am aware of. Version (3) cannot replace (2).
(1) vs (2) is bit hard to do given how our skins are done. I don't quite understand the latter part? Shouldn't the page title stay constant, and the subtitle say what we are actually looking at?
You may be right, a header might be constant, and a subheader might take the variable part(s). Yet, in some languages, you must use specific or unspecific grammar (similar to English: "the user" or "a user", but you don't have "user"), so you must make a choice at some point.