Dead metaphors stretching their legs

Professor Harold Bloom's rant about J K Rowling and her lucrative 'literary' creation is worth quoting in full:

"I went to the Yale University bookstore and bought and read a copy of "Harry Potter and the Sorcerer's Stone." I suffered a great deal in the process. The writing was dreadful; the book was terrible. As I read, I noticed that every time a character went for a walk, the author wrote instead that the character "stretched his legs." I began marking on the back of an envelope every time that phrase was repeated. I stopped only after I had marked the envelope several dozen times. I was incredulous. Rowling's mind is so governed by cliches and dead metaphors that she has no other style of writing.

But when I wrote that in a newspaper, I was denounced. I was told that children would now read only J.K. Rowling, and I was asked whether that wasn't, after all, better than reading nothing at all? If Rowling was what it took to make them pick up a book, wasn't that a good thing?

It is not. "Harry Potter" will not lead our children on to Kipling's "Just So Stories" or his "Jungle Book." It will not lead them to Thurber's "Thirteen Clocks" or Kenneth Grahame's "Wind in the Willows" or Lewis Carroll's "Alice."

Later I read a lavish, loving review of Harry Potter by the same Stephen King. He wrote something to the effect of, "If these kids are reading Harry Potter at 11 or 12, then when they get older they will go on to read Stephen King." And he was quite right. He was not being ironic. When you read "Harry Potter" you are, in fact, trained to read Stephen King."