Are you trying to convince someone to not write something? Seems counterproductive. Luckily I stopped writing this weeks ago and am currently working on a different project which is going much better (Durmstrang!Harry, for those who are curious. Seemed smarter than instead of trying to work out this puzzle, to just go to a completely new setting and do pretty much the same thing except without the stations of canon being a limiting factor). Interesting point. I wonder if it's simply because JKR hadn't though of the Hallows during the early books, and needed to write her way out of that situation, otherwise you'd have Voldemort going after the Hallows years and years ago. It does feel like there would be a bit of mental gymnastics needed for Voldemort to not have heard of the myth of the Deathly Hallows at some point, and the in-book explanation doesn't seem nearly enough. I'm not too concerned over it though, as it was just an idea.