If you had not written your comment claiming it was usable, I would not have been motivated to try and figure out the interface to see how you could claim that

If you had not written your comment claiming it was usable, I would not have been motivated to try and figure out the interface to see how you could claim that in good faith. Once I figured out how to get the content (by randomly clicking on things that didn't look like user interface), I disagreed. I think a "usable" interface means you can tell how to use it (requiring reading a manual would still be "usable" for complex tasks, but Twitter doesn't have one, and is simple). I think you are using a more extreme definition of "usable" than most people. Originally, I clicked on the link, saw there was almost nothing there and no visible way of getting more, and went looking for a usable mirror in HN comments. I'm 41. I'm not a paraplegic, but I am physically disabled; I've spent most of my adult life unable to use keyboards, for example, and there are many ordinary things that most people take for granted that I simply can't do. I think I have a fair and reasonable definition of "usable".