mizkidmas, i think that's the deal yes, but, i can't say for 100% sure, i'm lerning like you do. but i still think that generally speaking it is to.
don't know about the moldy frame. maybe you oughta give it back to bees, or if you make a split or something? if it's from winter, and you winter feeded the hive, it could be sugar/honey in it, right...
yes, they definetly builded more wax, since they felt like they're having an ongowing flow all the time, but also, they stored a big portion of it, making your honey "fake" so to speak. bees should not be fed when not needed, and bees need to be fed only on 3 occasions.1 if they're hungry 2 if they're starving 3 if they're running low on stores.