> besides it being difficult to navigate between them That's it. Hierarchical pages makes it really easy to contextually browse or what I call "immutable brows

> besides it being difficult to navigate between them That's it. Hierarchical pages makes it really easy to contextually browse or what I call "immutable browsing" which is never just clicking, but always ctrl+clicking links to never change your current page. Also, the one thing many people don't realize is how easy it should be to close dozens of pages. A simple drag across the close buttons in Doogie (or drag over which ones you want) helps close swaths of pages.