Game Moderator, eh?

I'm a little surprised the GM title isn't something like Editor-In-Chief or something more comic related.

Small theme thing is all. Probably shouldn't have even mentioned it. :)

Almost certainly for purposes of keeping the traditional GM abbreviation.

They mention that the GM is a Editor in Cheif. They go in a bit of comic book analogy at the start if the GM guide.

I am sure if you started calling your self Editor in chief they will not mind.

GM is just an easy to understand term. It also let people know it is a role-playing game.

I asked the guy running my session at GenCon if there was going to be a cutesy term for the GM and he said that they had considered it, but decided to make it more descriptive/traditional to make things easier for people new to RPGs.