Well I NEVER! (And probably never will...)
There you have it. According to the link behind the image, I'm writing to a Junior High reading level. (So, incidentally, is Mr. Tweedy. HA!)
I'd blame it on all the Blake's 7 entries, but Noah's Moribund Blog, which is really just about some stupid online Firefly Cosmoquiz, manages to rate "Postgraduate." And Samizdata got a respectable "Undergraduate."
Guess it's time to crank out a Python script to seed my entries with SAT words, then...