Screenwriting Tip #779
“The Dark Lord” is not an acceptable name for a dark lord. It just looks like you gave up halfway through character creation. See also: “the Master”, “the Creature” and “the Others”.
Not gonna lie, this is something that bugged me about Davies-era Doctor Who. As for the Moffat era — “Stormageddon, Dark Lord of All” is still a great name for a baby.