I'ld dare to say given the factor that 90% of the posts on this site are from a freak, meaning I make up 90% of the posts on this site, it would explain the N overload: regarding the freaks part I mean
"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray
There's the real life thing, and then there's also the excessive self-analysis based on a system full of abstract concepts thing... somehow doesn't seem to me like S types would go in for this stuff too much.
It's gotta do with the theory-based discussion and the lack of stuff to sense that probably keeps a lot of Ss away. That's not to say those that are here are any worse at it; they're just outliers in terms of interest. Honestly, it's nice in some regard to have so many Ns around though. We're a definite minority most elsewhere.