This article is the first I've ever heard of the Hallstatt culture, but wow were they awesome. Check out this amazing bronze bucket from ~600 BC. It has rivets!
> if it was an outlier like meteoric iron (a) it would look like it (corrosion)
It is corroded. That's why it's green.
Which, yes, means it's bronze, but note that it's being described as an "iron age dagger" and they think it was manufactured in southern Europe and traded to the north. Iron wouldn't be surprising.
An odd takeaway. The article seems to imply that most of their issues stem from spam and low effort questions/answers. Both from users and their own AI. More gatekeeping might have been the solution here.
By making it harder for people to use the site casually, you tip the balance in favor of spammers and away from people who actually have an interest, and therefore usually some knowledge, on a given subject.