Folks seem to be waving their hands at whether there's anything definitive written about Rita causing real harm, so...
In canon, Rita was not portrayed as explicitly on anyone's side, and probably the worst direct consequence of anything she wrote, that was explicitly mentioned, was Hermione receiving hate mail after being accused of using love potions. relevant HP wiki article
In HPMOR, If we take Quirrell at his word in Chapter 26, Rita was trying to destroy Harry's reputation, which is a real harm. In chapter 22, Draco thinks "The Daily Prophet was one of Father's primary tools, he used it like a wizard's wand." - and we all know the sorts of things Lucius gets up to with a wizard's wand. In chapter 80, the Prophet printed stories directly accusing Hermione of trying to kill Draco, before her trial.
I haven't been able to find any reference that Skeeter or the Prophet were aiding Voldemort during the War, in canon or MoR.
The next discussion thread is here.
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 85. The previous thread has long passed 500 comments. Comment in the 15th thread until you read chapter 85.
There is now 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.)
The first 5 discussion threads are on the main page under the harry_potter tag. Threads 6 and on (including this one) are in the discussion section using its separate tag system. Also: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15.
As a reminder, it’s often useful to start your comment by indicating which chapter you are commenting on.
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: