I'm not sure myself, but I'd say yes.
I think those that follow the Abrahamic religions, define it as being someone who isn't a Abrahamic, except if that someone is an atheist.
Use coherent phrases, that fit together into the conversation you're having with the other person (or people).
Some things.
Don't know.
In general, people who are interested in the show, but don't take my word for it.
Also you might want to take a loot at the "Beyond Equestria" section of the forums.