I got the impression that the author really loves Emacs and has spent a huge portion of his life caring about it and I think there's a huge amount of enthusiasm

I got the impression that the author really loves Emacs and has spent a huge portion of his life caring about it and I think there's a huge amount of enthusiasm in the post. It manages to be fairly lighthearted and fun, while still teaching me something about Emacs. All in all, I really liked it.