I don't know. If I ever meet one who rolls on leather in a raid over a rogue or a feral druid, I'm likely to get medieval on their vital organs.
Case in point, yesterday I just lost Toskk's to a *#@#@ Furry warrior. Yes, I know it's BiS, but they take a back seat to leather wearers who need for mainspec in non-dkp/SKG/etc. situations. I will admit my resto druid is sporting a cloth belt because it has haste instead of crit, but I got it instead of it being sharded, not because I won it over a clothie. I have gladly passed upgrades when dealing with armor inappropriate items when needed by the appropriate classes.
I can't wait for them to announce the penalties for doing stupid things like this. It better damn well be severe.