Earlier quoted context omitted.
For this particular website the impact isn't tragic, you can navigate, but you cannot navigate efficiently nor you can figure out well what and where you're navigating to. In short, it's usable but not perfect, the sidebar should be a nav rather than a div to convey it's where major and meaningful navigation is found. It's not easy to figure out without the visual feedback that those links are different than the othe…
> the sidebar should be a nav rather than a div to convey it's where major and meaningful navigation is found I think you are mixing two issues here, what's good for the end user and what's good for the developer and maintenance of the site. Both matter of course greatly but I think this article was about optimizing the user-experience. From the users' point of view does it matter if a section is a 'nav' or a 'div' w…
Yes.
There are people that use devices that rely on these accessibility options to differentiate nuances in the content that might otherwise be obvious when rendered in a standard browser: text only browsers, screen readers to name just a couple.