My most immediate reaction is that for an app where the primary purpose is to provide information, why is half the screen basically empty?

Obviously not true. Here's one, currently on the front page of the website, posted just two hours ago.

Nevis, Nevis McCat, Mog, Moggy McMogface, Moggy McMoggerton, Death Bringer, Destroyer of Mice.

Nevis takes a more direct approach.

Nevis the cat in a typically mechanically impossible position.

There's a bug in the Wikipedia mobile app that causes the text to go out of sync and show images from previous elements of your search history, and now I have a screenplay idea.