Kevin Yank highlights the importance of using heading structure.
Because assistive technologies like screen readers allow users to navigate through a document by its heading structure, your headings need to form a sensible structure independent from the rest of your document markup.
It is well known that headings contributes to better SEO as well as semantic HTML. However, it also impacts the accessibility, for which using the heading structure is necessary.
This has to be kept in mind for especially while composing templates for CMSs, which have to incorporatae adynamic content. I find this as one of the most important reasons to choose CMSs that let you control each and every aspect of the template. Wordpress, which powers this blog, gives you complete control over the template as part of the theme, and is hence a popular choice to build even non-blog sites.
