I prefer that some quests are so vague. When you actually do stumble upon the sword, you will hopefully remember who wants it.
"hopefully remember" is an interesting concept, especially in the context of this mod.
In that case, those of us who have become accustomed to having our notes taken for us electronically, should be specifically instructed to make our own paper notes. I have no problem with that, as long as I know beforehand - because this game (and many games before it) does *all* of your note-taking for you by default.