vordmeister - 8:12 pm on Apr 21, 2011 (gmt 0)
Surely TAL would be a three letter anagram :)
Interesting one though - I've noticed that navigation pages with mostly links tend to score advanced on the reading level, and embarrassingly the home page for one of my sites is rated advanced. I had a look at it myself and it's not user friendly so it's on the rewrite list.
Has anyone considered social engineering instead of a Panda algorithm - Google do completely random things to the results and say it's to improve quality on the web. Webmasters respond by improving quality even if they were good already. I know I'm taking a second look.
More likely it's a side effect, but not a bad one.