The mold tag is used for two totally different type questions. Currently there are 56 questions tagged mold, 51 refer to the fungus and 5 refer to the piece of equipment used to form a particular shape.
It appears as though more questions could be tagged with mold (equipment). I started running through the equipment tag in the first 100 questions there were at least 2 that could use the mold tag, but hadn't used it.
Or, should the tag be defined for the fungus and removed from the equipment questions?