Some of my great aunts and their friends used to wear collections of iron crosses and other German military insignia on their jackets, coats, or shawls for special occasions (especially funerals). They would tell us the stories of how every man who had originally worn those medals had died.
If the actual award, yes. But just the depiction of the cross itself, the Maltese Cross, which is what most Goths wear- meh.
One of the more generally agreed-upon statements I’ve seen is that the Germans, no matter what you think of their actions or policies, had some pretty freaking awesome uniforms and decorations. Pointed hats, iron crosses, skulls, all in black leather and chrome.
It’s been over 70 years now. Absent any more direct evidence, assuming someone wearing an iron cross is a Nazi sympathizer is rather like assuming anyone wearing a pentagram worships Satan.