In the way reactionary uses of Nietzsche always misunderstand him, because it's still ressentiment. It's unfortunate that there wasn't a strong right in Germany at the time Nietzsche was writing, so while you can quote his objections to the left but actually have to read and understand the Geneology of Morals or infer from aphorisms against nationalism and antisemitism and The Flies in the Marketplace that his aversion to the left doesn't mean he was a friend of the right. His sister being a protofascist nutjob and promoting him as the same didn't help. The comment I quoted didn't actually mention the Ubermensch, I was just using that as shorthand for the type that quotes Nietzsche but doesn't read him. It's not completely irrelevant though; the Ubermensch is neither master nor slave. Even if the commenter was correct in his implicit identification with the master morality, they would be incorrect in treating that as a thing to be proud of. The master morality is also a thing to be overcome.