No, I'm not trolling. "Fight me" (or 'fite' me) is a joke response to a disagreement on an internet forum. And that should have been really obvious, because how would we even fight, if we wanted to, two complete strangers on an internet forum?
As for Calypso's attitude having been explained, explaining it doesn't make her any more interesting. A one-shot side character we'll probably never see again is a better character, because she raised an interesting question about the moral implications of experimenting with the darker side of the human psyche in a controlled setting with no permanent consequences. (Because everyone thinks it's just a video game.) And her scene was hotter too.