To each their own, I suppose, but I enjoyed this story quite a bit. A bit like the Fast inverse square root story, or the Control-Alt-Delete stories, it's fun to see the origin of interesting and neat things, even if they are somewhat predictable.
I've been using this server as a ping and DNS test for at least 5-6 years, so it's great to hear more about it.
Agreed, I was hoping for more dramatic/unexpected/insightful story than 'we picked an easy to remember number and it turned out to be too much effort to restrict access to the public'.