If the goal is simply to maximize engagement, there is no hard requirement that the algorithm should never show you things that you dislike. Essentially, what I

If the goal is simply to maximize engagement, there is no hard requirement that the algorithm should never show you things that you dislike. Essentially, what I am saying is that your belief of what their objective function is may be different from their actual objective function, and that is in no way an indication that their model is a failure.