Oh yeah, the anime/manga differences are yet a third reason why I stay away from animanga fic. I never watch anime, yet western fandom is a lot more likely to be anime-focused rather than manga-focused (though that is changing). With stuff like Fullmetal Alchemist where the anime and manga are completely different that means I spend a lot of time being confused if I try to read fic. I might as well be reading for a completely unknown fandom it feels like.

Translating from a translation definitely sounds like a bad idea.