The behavior is even more miserable if you try to navigate via keyboard pageup/pagedown. Whole sections of content are liable to be skipped, and when they aren

The behavior is even more miserable if you try to navigate via keyboard pageup/pagedown. Whole sections of content are liable to be skipped, and when they aren't, you often land in an odd intermediate frame that doesn't make a lot of sense. Page designers need to consider that navigation is not always continuous.