I don’t actually know much specifics about 50SoG—I tried to read it at the height of it’s popularity, and gave up a few chapters in. I did read the first Twilight book, and didn’t see that much similarity in the parts of 50SoG I got through. I never looked at the fanfic version of 50SoG. As such, I don’t know how clearly derivative the fanfic was, nor how much changed to the published novel. My guesses about these factors are that they point to 50SoG being vaguely inspired by Twilight where HPMoR is clearly derived from HP books and films.
Note that my moral view is not binding—I think it’d be wrong to use someone’s permission to make noncommercial derivations, then change the minimal amount to make money. That’s based on the suggestion of fairly minimal rewriting to change names and replace too-obvious references, and my interpretation of J.K.R.’s wishes.
If it’s a much deeper rewrite, including changing the basic plot to something other than a dark lord returning based on prophecies about a connection to a young boy hero, who turns out to be possessing a teacher at a school that’s silly and amusing in some very specific ways, it’s not problematic at all. And it’s not HPMoR at that point either—it’s some other possibly-magical story that uses some of the non-Rowling concepts from HPMoR.
I don’t actually know much specifics about 50SoG—I tried to read it at the height of it’s popularity, and gave up a few chapters in. I did read the first Twilight book, and didn’t see that much similarity in the parts of 50SoG I got through. I never looked at the fanfic version of 50SoG. As such, I don’t know how clearly derivative the fanfic was, nor how much changed to the published novel. My guesses about these factors are that they point to 50SoG being vaguely inspired by Twilight where HPMoR is clearly derived from HP books and films.
Note that my moral view is not binding—I think it’d be wrong to use someone’s permission to make noncommercial derivations, then change the minimal amount to make money. That’s based on the suggestion of fairly minimal rewriting to change names and replace too-obvious references, and my interpretation of J.K.R.’s wishes.
If it’s a much deeper rewrite, including changing the basic plot to something other than a dark lord returning based on prophecies about a connection to a young boy hero, who turns out to be possessing a teacher at a school that’s silly and amusing in some very specific ways, it’s not problematic at all. And it’s not HPMoR at that point either—it’s some other possibly-magical story that uses some of the non-Rowling concepts from HPMoR.