Harry glanced in the Dementor’s direction. The word echoed in his mind again.
All right, Harry thought to himself, if the Dementor is a riddle, what is the answer?
Somewhat later in HPMOR, Dumbledore does (obliquely) indicate that Voldemort = Tom Riddle. (Or at least he indicates that he believes this. There’s enough identity-confusion in HPMOR that I don’t think we can be entirely certain that he’s right.)
I thought the strange word was “riddle”.
Oh.
I get it now. *foreheadsmack*
Not that that doesn’t equally support the Harrymort theory.
If anything, that supports their theory.
Somewhat later in HPMOR, Dumbledore does (obliquely) indicate that Voldemort = Tom Riddle. (Or at least he indicates that he believes this. There’s enough identity-confusion in HPMOR that I don’t think we can be entirely certain that he’s right.)