I agree, the translations are getting ridiculous. For example, I downloaded an Italian translation of a sound-effect mod and opened it in TESVSnip just to satisfy my curiosity and, sure enough, I could not find any translated text. It is nothing but sound-related data. I could not find any in-game text at all. I couldn't even find anything Italian. Look around and you'll find plenty of "translation" mods for things like sound effects and armor that probably require no translation because they contain little or no text.
About a week ago I noticed a translated version of one of my own mods in the Latest section. The person who made it had never contacted me and had ignored the permission settings on the file, which prohibited modifications and re-uploads. I asked him to take the translated version down, and he did, but the situation raises at least one significant issue. By the time that I had noticed the translated version existed I had already updated my file to a new version, making the translated one obsolete. Are all of these mod translators going to keep up on the version updates on all of these mods? If not, are the people that use the translated mods going to be bombarding the original mod authors with questions about bugs that have already been fixed in the original version because they are using an outdated translation? What about accidental mod-breaking edits that may be committed by the translators? It seems to go against the whole Nexus system of permissions control to allow this, and I think it will complicate mod support and development for authors. The translators are cranking these out. Some of them have spammed 15+ mod translations and I very much doubt they are going to be able to maintain all of them with updates.
I can think of at least one way to address this and that is to make a rule against separate translation mod listings, requiring that they be uploaded as optional downloads with the parent mod. If someone wants to translate a mod they can send the file or the relevant translated text to the original author. This would reduce the listing clutter and make things easier for mod authors, allowing them to decide if they want to support multiple versions of the same mod.