Actually, I don't think that people who are just asking when their favourite book will come out are trolls. They love GRRM as much as we do, and it's normal IMHO that they want to know when the book will be out! I personally avoided to ask simply because I understand that for the author could be annoying, but I hope every day when I check this page to read a sentence saying that the book will be published next month! I think is cool that we can come here and read what George has to say, but I'm not flaming around against people like me who're just looking forward to read another episode of the Song of Ice and Fire.
Keep on the writing dear George. I can't wait to read another part of your adventures! I understand that creating is not like reading but still I'm a big fan of your books and I can't wait to read on these page that the book is over and ready to be published. Please finish it someday! ;)