Well a warm welcome to the guild for you! I'm always impressed by what an international community this is.
I firmly believe that map-making and story-telling go hand in hand, and it's not uncommon for people to post little bits of story along with their maps here. I do it all the time, and no one has told me to stop yet
Enjoy your visit!
By the way, have you ever heard of a band called Os Mutantes? All the Portuguese I know I learned from them!