I'm thinking more of a writer sitting down and struggling to choose the correct word to identify a thought. I wouldn't say they're "conveying information." At that point they don't have information. I would say rather that they're attempting to refine the raw material of the flow of their thought-consciousness by using language. You can use words to assist that refinement. (I'm doing it now, for example.) But you can also use words to divert your thought stream away from potentially uncomfortable ideas, or someone else can do that to you.