You have valid points, and normally, I would disagree with me too.

For this particular project, however, the reader needs to be able to see every link, as this is a reference document. New users to our LMS will not be familiar with the terms used. As a result, they will not know which top-level link to select, to find the secondary link they may be looking for.

As a general rule, if a site/blog has the need for a more complicated navigation, collapsible nav is the way to go. One point I wanted to make with this article is that even though collapsible navigation is preferable in most cases, good design means understanding the audience and catering to their needs.

Thank you for your comments and your excellent points regarding collapsible navigation. I like your unique blog look, BTW.