About [[MediaWiki:Echo-no-title/en]]
I think the more common word for pages (besides articles) is just pages.
This item is an internal error message. You're welcome to change it if you like, but I don't consider it high priority enough to do it myself.
If you don't care about messages you create, you should mark them optional; and in general if you don't care about messaging and translations you can ask the extension to be removed from translation. Thanks,