"Spelling, grammar and punctuation are not only things that happen to other people" - correct!
And yes, you have to work hard at it ... very hard indeed. I'd say getting started in publishing in this day and age is probably harder than it was in Pterry's time. There are many more choices (indie publishing? Traditional? Self?) but with more choices come more confusion.
I'd love to see the full interview. Thanks, Dug - and Rhianna!