The Tyranny of the Marginal User
Funnily the acronym DAU (Daily Active User) in German also means “dümmster anzunehmender User” (<a href="https://de.m.wikipedia.org/wiki/Dümmster_anzunehmender_User" rel="nofollow noreferrer">https://de.m.wikipedia.org/wiki/Dümmster_anzunehmender_User</a>)  the dumbest imaginable user, which fits to the point of the story.