Someone should just edit the title. It's not "emac's" it's "emacs"! The name was originally derived from "Editor MACroS". Here is the wikipedia entry: https://en.wikipedia.org/wiki/Emacs
Indeed. Even though the HN guidelines say that the original title should be kept - it should still be acceptable to fix (non-intentional) typos.
It's a bit like Vi.
Oh no... you didn't... Guys, he's starting a war here :-P
It's really not at all like vi.
It was a dumb pun on the last letter of "emacs" being left off. :P