David Monroe's name may be a reference to a piece of fiction Eliezer likes, but that doesn't mean that his name will be of relevance to the plot.
My point was that the Monroe example and the ponies show that references play roles in the plot, so even if a character once named 'Baba Yaga' shows up, we wouldn't necessarily expect her/him to act exactly like the Baba Yaga in the other fic, in the same way Monroe doesn't play the same role or the ponies play the same role in MLP, but nevertheless, the character has to do something and at this stage in MoR, there's no room for frivolity or introducing a new character just for a throwaway gag, and all the foreshadowing suggests that the new role/character will be important - in the same way that Monroe was important for Quirrelmort's backstory and current nature.
But why would you not expect Baba Yaga to be like, say, the Elric brothers, mentioned solely as background detail?
New chapter!
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 102.
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)
Spoiler Warning: this thread is full of spoilers. With few exceptions, spoilers for MOR and canon are fair game to post, without warning or rot13. More specifically: