unhappiness with the role the Guild played in the Google Book settlement. “You decided to deal with the devil, as it were, and have presented your arguments for doing so. I wish I could accept them. I can’t,” Le Guin wrote in her letter of resignation. “There are principles involved, above all the whole concept of copyright; and these you have seen fit to abandon to a corporation, on their terms, without a struggle.” SOURCE
I am glad I never signed up with the Authors Guild, although now I can't say "Take this deal and shove it!"