Sometimes I get the strangest support questions by users of my presentation app SlideMagic. Obviously, the user did not explore the help pages, or did not try out all the menu options, or did not understand the philosophy behind SlideMagic. Initially, I felt like pointing that out. Now I figured out that it is my problem, not the user's.
User interface is entering an interesting phase. Mobile/tablet apps all look very cute but it is often incredibly difficult to find the most obvious functions. Desktop/laptop applications have become so bloated that obvious functions are hard to find, or are still in places "because they have always been there for the past 10 years" to serve the large install base of users. Every time I set up a new presentation, or create a new slide in PowerPoint I find myself doing a large number of repeat clicks (by now at incredible speed) that basically do very simple things (creating and aligning a grid of boxes for example).
I keep on trying to get it right.
Art: Vladimir Makovsky, Teacher Visiting a Village, 1897