Fandom Grammar

I started off writing fanfic in American English as a POV thing (like how I capitalise or don't capitalise "god", depending on the religious beliefs of my POV character), and now it's just become habitual, and I do it even when writing from, say, a Canadian's POV. I know a number of Australasians who make concessions on vocab for characterisation purposes but who steadfastly maintain their native spelling, so that kind of compromise is always an option, too. Not that I'm saying you should compromise if you don't want to. :-)