Earth's atmosphere is mostly Nitrogen and Oxygen. But that has absolutely nothing to do with this question, because it's about the tone and mental skills associated with most posts.
A friend of mine recently told me they felt oppressed by the level of Fe, that there were too many sensitive people here. I haven't really noticed it myself lately, but then I'm an FJ.
So, what do you think? What function seems to dominate the forum atmosphere for you most these days?