I was trying to trade some militia leggings but there is no area in the menu to make any trades at Golden Bazaar. Not even gear with materia can be traded....I thought it was just because a hamlet defense was going on but when I went to Aleport in Limsa even if hamlet defense was going on I could still make trades for militia leggings and menu for donating gear with materia exist. Maybe someone needs to check this. I think it's a bug.