from my own feed, and cited by several others:
It's not really to his defense, so much as "telling it like it is" when a fanboy asks him if he thinks Martin owes something to his readers.
http://syndicated.livejournal.com/officialgaiman/525510.html But yes, it does have the line that "GRRM is not your bitch."
priceless, as well as so true.