I found this transcript in which the IRC moderator believes it is the history of JKR on Mugglenet. In case it ever goes down, here are some tidbits. At the end the moderator confronts her about who she really she, and she gets all aloof and stops coming on Mugglenet. For clarity I have replaced [Name Edited] with [JKR].
This is before Half-blood Prince was released, but after the title was announced.
She repeatedly says that Lupin is a Half Blood. My read is that she is trying to lead people in the wrong direction about the identity of the Half-Blood prince. end of the comment []s are the commentary of the person who compiled the logs.
([JKR]) LUPIN IS HALF BLOOD
([JKR]) Lupin is Halfblood [She loves saying this in the chat. .
.]
([JKR]) LUPIN IS THE HALF BLOOD PRINCE [Much more blatant; it came
very early in the [JKR] saga, back when noone realized [Name
Edited] could be/is JKR]
([JKR]) if you read that chat, JKR gives full answers to all the
questions she gets
([JKR]) apart from the ONE question where they ask her what Lupin
is
([JKR]) all she replies to that is "Half Blood"
([JKR]) and goes straight onto the next question
([JKR]) JKR said clearly in her most recent chat Lupin IS HALF
BLOOD
([JKR]) she didnt say anymore on that at all
([JKR]) that was before she released the title
([JKR]) someone asked her on world book day chat
JKR fishing trying to get people to find clues in GoF chapter 9.
([JKR]) btw, I reckon Chapter 9 of GoF is VERY special
([JKR]) we all ought to read it again
([JKR]) JKR said in anohter interview back in 2001, that she had
Chapter 9 of GOF was sooooo difficult for her to write that she had to
rewrite it 1213 times, and almost considered just leaving it out and going
onto Chapter 10 with a page saying "chapter 9 was too tricky to
write"..... ([JKR]) JKR said in anohter interview back in 2001, that she had
Chapter 9 of GOF was sooooo difficult for her to write that she had to
rewrite it 1213 times, and almost considered just leaving it out and going
onto Chapter 10 with a page saying "chapter 9 was too tricky to
write".....
([JKR]) it means there's something in Chapter 9 that she had to
write VERY VERY carefully
She focuses a lot of Harry's scar, Harry's survival, and how people who die in Harry Potter never come back.
([JKR]) Josh from Cottenham Village College: Right at the
beginning, when Voldermort tried to kill Harry, how did Voldermort and
Harry both survive?
([JKR]) JK Rowling replies > That is the crucial and central
question and if I answered it there would be hardly any point writing
books six and seven... so I won't!
([JKR]) she says the shape of the scar is not the most important
thing about it, but something else is.... WHAT IS IT?
([JKR]) is it possible JK's tricked everyone into thinking harry
and/or voldemort HAS to die?
([JKR]) after all she did say that she and Madame Trelawney had
worded the Prophecy very carefully
([JKR]) she said Sirius wont come back from the dead
([JKR]) that once the character is gone, he's gone
([JKR]) but to base a whole book on Sirius
([JKR]) to make out he's actually really important
([JKR]) and may be heavily involved in the outcome of the series
([JKR]) and then to go and kill him off
([JKR]) there has to be a pretty good reason..
([JKR]) ?
([JKR]) JKR has said in an interview clearly, that once her
character was killed off, there was no way he/she was coming back
([JKR]) this was in the run up to OOTP's release
([JKR]) WHY DOES DUMBLEDORE TRUST SNAPE??
([JKR]) pettigrew's new silver hand is AWFUL STRONG
([JKR]) draco's going to be murderous because his father's been
put into azkaban
On the mention of Spongebob Squarepants.
([JKR]) JK would never admit she was JK on here
([JKR]) and she's probably show a surprising amount of knowledge
on whatever the random topic is being discussed
([JKR]) even if it IS spongebob squarepants