Board Thread:Questions and Answers/@comment-31.151.107.102-20141123141843/@comment-917693-20141204010600

The video descriptions on NND, rely on users/watchers who translate. , for the english version. The uploader himself doesn't have much to do with it.

You yourself could theoretically submit a translation, hence the quality can vary, and you'd find transations more often on popular videos rather than less popular ones (probably).