GRRMartin has this to say at the end of a recent Livejournal post:
Yes, I know that THE HOLLYWOOD REPORTER named me “the third most powerful writer in Hollywood” last December. You would be surprised at how little that means. I cannot control what anyone else says or does, or make them stop saying or doing it, be it on the fannish or professional fronts. What I can control is what happens in my books, so I am going to return to that chapter I’ve been writing on THE WINDS OF WINTER now, thank you very much.
Even the most powerful writers among us cannot control the world outside of our books. We can always control the words. But we can’t control how anyone reads them.
Good luck with The Winds of Winter, Mr. Martin! I’m looking forward to reading it!