Good idea but... It has more 'minuses' then 'pluses' IMHO. Cause it'll bring another headache to mantainers, make the code more complicated and will take more time to load. Besides that I do really like the things like 'perlmonks colors' - the identification sign of the site, which is by all means a community, covering common interests of programming perl.
As I mentioned it was my humble opinion :)

/Maqs.