I feel because it's one where people are most creative. I love being surprised by something that turns out to be yet another loss meme. The origin is quite stupid/boring, but it has become such a great versatile meme.
He tries to look at history through the eyes of people at that time and not from a distance. E.g. instead of talking about great strategies etc he focuses on what it meant to be raided by Ghengis Khan.
Yes exactly!
These few lines can be represented in so many ways, it hardly gets old.