I seriously doubt he smurfs Smurfs for that. I believe he likes to smurf the Smurfs in a big smurf pie. Though I'm not entirely sure where he smurfed the last smurf pie from, since he seems to be bad at smurfing us Smurfs.
Kobold Cleaver did something very special (whether a good special or bad special hasn't been revealed), and was awarded/punished with his very own Smur f portrait.
lesson: be careful whom you s mur f... *snarf snarf*
I didn't know you could S tealt h S mur f that way . . . .