I don't know if it's possible eek a whole challenge out of that, but maybe comment fic? What say you fandom?
Excellent idea! I'd participate in an actual challenge.
Mmmm, brains are sexy. I'll write some comment porn RIGHT NOW.
I read great fic about Jared being a smartypants! I'll link you in comments!
Jensen thinks smart!Jared is...
Anything else to add?
*makes grabby hands*