Literally has been used in that way for literally hundreds of years. From Charles Dickens ("He had literally feasted his eyes on the culprit.") and Charlotte Br

Literally has been used in that way for literally hundreds of years. From Charles Dickens ("He had literally feasted his eyes on the culprit.") and Charlotte Bronte ("Literally I was the apple of his eye"), to Mark Twain (in Adventures of Tom Sawyer) and F. Scott Fitzgerald (in The Great Gatsby) -- among others. This "Literally shouldn't be used figuratively" is a rather modern construct that was artificially created.