Update: Dan wrote to the BPI, who deny the accusation:
We didn't decide to ban the artist - not only is it untrue that we made a decision to ban her from the campaign - she was never in the running in the first place. We don't know what her views are on downloading, and even if we did, we don't condone censorship. Since we did not ban her, it's untrue to suggest we did so on the basis of her personal views.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.