I was mostly told to do such for ownership reasons, to show that the blog was of your work and not just done for the user generated sites. I guess it could be used to help showcase your work if you ever intended to try to make money off of them. I guess just having them saved in MS word isn't enough these days. Never thought of the money angle. Doubt anyone would want to go to a no-name blogger in a sea of no-name bloggers in the expansive genre that is videogames.