When I visit a blog that has been created by a new blogger, I immediately notice that the permalinks to their blog posts haven’t been changed. By default, WordPress uses a confusing permalink structure for each post, which most new bloggers don’t realize.
It is important for those setting up a blog to ensure they have modified the permalinks of their posts from their default value. It isn’t hard to change the structure, and can be done even after you have published several posts.