You're banned because this is a comment from Ernie15 on my profile explaining why it's iron:
Your comment on Skeleton_Pilot's profile about iron vs. silver was enough for me to open my comments back up. Yes, the rank between wood and gold is ambiguous, and it has been debated since the beginning of time. However, despite the popularity of it being silver, iron is actually the correct and intended name for the metallic background-wielding badges. Carlie may be partly to blame for this confusion, as she created help stickies with the list stating it as silver rather than iron. Think of it this way: going from wood to silver is a pretty big jump; you're going from dirt cheap to expensive to slightly more expensive. Having iron in the middle creates a nice balance between the wood and gold ranks. I don't know who originally wrote the list on the help page that misinforms users that these ranks are silver and not iron, but it was clearly thrown together by someone who just looked at the ranks and wrote what they saw.