You're gonna be bothered by how cool I am.

But if - as most readers seem to believe - she is writing R/Hr and H/G, she isn't giving anything away that people shouldn't have already read in the books, especially HBP. Look way back up at my comment on the quote from the Interview. Just before she said "we do now know it's Ron and Hermione," she specifically asked Melissa and Emerson to put a spoiler warning on the Interview - because she was about to discuss a revelation that had ALREADY been made in HBP, and she didn't want people to see the interview and have the book possibly spoiled for them.

Why would she bother with that if it were just a red herring? If she has no problem giving away red herrings in her interviews, WHY did she tell her interviewers to warn people not to read her comments if they hadn't finished the book yet?