I'm not sure why there is so much confusion over what can, and what cant be RE'd, as well as craftable gear (tionese) that is bind on pickup. It just seems like a waste of resources.
It's really simple: You can currently RE any level 61 or greater mod that isn't slot-specific or says "crafted by so-and-so". So you can't RE Campaign armorings because they're bound to a slot; you can only RE ones that drop BoE by themselves. You can't reverse player-crafted items till you insert them into gear and remove them, thereby clearing the "crafted by" text. (This was unintended, but BioWare has said it's not an exploit.)