I first entered this thread thinking "No way. Nobody could do THAT. Not a 100 HP no-defense victory."
Then, I saw that the actual execution of it was humanly doable. At first, I felt mildly disappointed, but then I realized that, hey, you know what? You don't actually NEED cheese sometimes to pull stuff like this off. Just some forethought and some good ol' using stuff to your advantage.
I still enjoy fighting Moon Lord up close, weaving through stuff and using an arena for cover, but nothing ever said this is invalid or unimpressive. Anyone who says otherwise are way too elitist for their own good. "Anyone can" sure, but "anyone" can do "anything" with a good understanding of, well, what it is that they are doing.