When does a joke become a dad joke? When it becomes apparent. (Don't throw rocks at me.) 

If the internet knows how to do anything, it's how to be annoying. Since the World Wide Web was first turned on, people have found ways to make themselves seem smarter and more important than they really are. We all know the "umm, actually" type of person waiting in the comment section to assert themselves (and we don't like them). 

Well, this collection of smarty-pants riffs on that trope of person and turns the joke back on itself. They aren't being serious and that's the joke. So don't take it seriously and if you don't find it funny, the joke is on you.