Does Harold Pinter's private life shed light on his plays?

guardian.co.uk: "Does knowledge of a writer's private life help to illuminate the work? It's an age-old question. But it's also one thrown into sharp relief by the publication of Antonia Fraser's book about her life with Harold Pinter, Must You Go?, which I wrote about at length recently. The book is obviously a personal memoir rather than a study of the plays. All the same, I'd argue it sheds a good deal of light on Pinter the dramatist."