I’m posting to provide another example and +1 the idea.
I am working with Norse mythology. Many of the translations of the original sources anglicize names and do so with different spellings. Odin might be written “Odin”, but it might also be written “Oðinn” or a kenning might be used: “Lóðurr’s friend”. (Some of the other nouns have many more spellings.) Additionally, sometimes differing names (as opposed to spellings) might refer to the same thing.
I want to be able to quote the translations as they are written, but have backlinks and unlinked mentions work. Currently backlinks can be handled with [[Page|Some text]] notation, but aliases would be easier and faster. Unlinked mentions don’t work at all unless the name happens to be spelled in the translation the same way as the file name.