I recently wrote an article that explained how to configure permalinks in WordPress. In that article, I go over a few different reasons why you would want to use pretty permalinks instead of using the default linking structure. Well, Ted Clayton published an article that took the other side of the permalinks argument. Ted goes into detail on why and how WordPress uses the default linking structure and explains that it’s not as bad as some would make you think. It’s an excellent read and I thank Ted for bringing up the other side of the equation.
There is, in truth, a maze of trade-offs & counterpoints involved in selecting a strategy & tactics for making nicer, people-friendly URLs, for each & every website. Yes, many typical blog-sites will be able to adopt typical, easily-identified Permalink configurations. In the end, though, only you can do it right for your site.