Reddit is famous for their relentless interruptions to their web experience in pushing users towards their native mobile app. Here they experiment with a "cheeky" nudge about cats and dogs.
“Yes, power users complain—and still continue using the site—but the casual user does not. These dark patterns have been normalized on other websites. These practices are done because it works”
Reddit's mobile site UI has become even more evil. I don't have the app installed, yet it mimics the Android "Open in X or Y" prompt to try and trick you into installing it. Shame.
Reddit makes it's website difficult to use, in an effort to drive users to use their native mobile apps.