We're On It. One customer service rep who worked for Comcast from 2005 to 2014 at a Tennessee call center says the Make It Right cards didn't necessarily lead to faster resolution, however. A search of the Comcast support forums shows this is true at least some of the time.
What causes a metallic smell? Quick Answer. Reactions between chemical compounds on the skin and metals such as iron and copper can generate a metallic smell, explains Nature. A copper imbalance in the body, which triggers excessive yeast growth, can also cause a metallic odor, notes Dr. Lawrence Wilson.
the smell of copper was used to compare to the smell of blood. This strikes me as very odd, since iron is the heavy component of blood. I can understand calling the smell 'metallic' or comparing it to iron, but not copper.