The only time I can recall someone getting into trouble for producing a fan edit was Selutron who was working on an edit of Superman II, it was an incredibly ambitious edit as far as fanedits go too. Even Warner Bros were impressed by what he was doing, but for whatever reason he was ordered to stop production of it, maybe it was because he was always talking shit about the Donner Cut lol. Joking aside, I think the most logical explanation was his work was gaining a lot of attention across the web to the point Warners were worried about the possibilities of the fan cut surfacing and doing the rounds on the black market, I heard something like that happened to another guy who was working on some called “Superman II: The Green Cut”.