I really don't know why this is being debated still. There were plenty of quotes and arguments presented in the previous page that shows, yes, Lucas does feel the sting of critics sometimes, but he looks at it as being part of the job so tries not to focus too much on it. But he still is affected by criticism. I don't know how you could take a quote where Lucas flat out says "everyone criticizes the movies I make so now I'm not going to make any more" and somehow try to paint a picture of a man stoically ignorant to critics.