If there really were accurate warnings about the horcruxes causing insanity then what would happen after Voldemort made 7? This fanfic author thought it would basically cause the horcrux owner to believe that everyone around them is basically accurate in what they're saying, completely refusing to admit that they didn't know something another person said, no matter how wrong it was. The Daily Prophet says Sirius Black was Voldemort's right hand man, so of COURSE they should invite him into the Death Eater's ranks as Voldemort's #2. No Lucius, shut up, of course he is, don't you read the newspaper? Idiot. And now Harry has that exact personality quirk as well, so it is amazing to see how he reacts to everyone around him.
FanficRecs Voldemort level powers+insanity+all seven years of Harry Potter
If there really were accurate warnings about the horcruxes causing insanity then what would happen after Voldemort made 7? This fanfic author thought it would basically cause the horcrux owner to believe that everyone around them is basically accurate in what they're saying, completely refusing to admit that they didn't know something another person said, no matter how wrong it was. The Daily Prophet says Sirius Black was Voldemort's right hand man, so of COURSE they should invite him into the Death Eater's ranks as Voldemort's #2. No Lucius, shut up, of course he is, don't you read the newspaper? Idiot. And now Harry has that exact personality quirk as well, so it is amazing to see how he reacts to everyone around him.