Being a series of vignettes aimed at educating the super-powered reader about the various possible permutations of the flight posture.So called not only because of the vertical position, but also because it's damned creepy. As such, it is preferred by such cold creeps as Dr. Fate and the Krypton Man. While there are advantages to this position, such as preventing neck pain and perfecting "hover mode", there are also some drawbacks, like high levels of friction and the risk of ending up with more dead bugs on your person than the front grate of your car after high-speed off-roading in the country.
Comments
If DC really want a relatable Superman, have him wear a parachute.