For anyone really bothered by this Moonfire thing, it would be trivial to test, since numerical threat information is available in the game API and can be accessed by/logged by addons. Should be pretty quick to gather some numerical values for threat granted by Moonfire DD, GG Moonfire etc, and also pretty easy to test if the threat numbers reported are "real" by having someone try to pull off you and seeing if the threshold matches up. If no one does this after a while I may get my friend who already made a threat value gathering addon (for skittish testing) to test with me, but he isn't available until after Thanksgiving.