This is not game canon, but certainly my question is like why don't more people know that Tom Riddle and Lord Voldemort are the same person? Sure, he could have faked his death and disappeared off the face of the world as it were -- but what if there was some big conspiracy of magic at play to alter memories? I don't really have much thoughts beyond this, but certainly something I have spent a good amount of time thinking about and trying to solve.