This may have been in a related article on the site, but, if this is a reference to Nietzsche, as it seems to be, he was not a nihilist, ethical or otherwise. The book was called Beyond Good and Evil, and he points out this is not the same as Beyond Good and Bad. He advocated the opposite of nihilism: value creation as the basis for meaning.
Just pointing this out as I find Nietzsche is often misunderstood to be a nihilist.