As you make more posts, your "rank" will progress. Look at some of the other members who have over 50 or over 100 posts. See what is by their name.
You haven't seen something similiar on other boards?
Everyone here starts at Newbie until 25 posts, and then Mall Ninja until 50 or 51.
Don't sweat it. It's supposed to be funny. As you make more and more posts and participate more, it will change.