Etsy's guidelines on vintage are that the item must be 20 years old or older. So stuff labeled 1990s should be unacceptable.
Unless you're admin and think it's cool. Etsy had a Storque article dedicated to grunge, with labels like "1990s" and "90s"...ummm that wasn't 20 years ago. Now, the items actually featured were those labeled as vintage and appear to be older than 1990 (some look like they're actually from the 70s, real good "grunge" there) or handmade grunge inspired items. So it's not about the sellers chosen, it's about admin's inability to count. Oh, and the fact that it hurts their feelings to be told so.
lisajune closed the "offending" thread with this pity party:
I apologize if you find this feature offensive. Our merchandising team works hard to draw on themes that appeal to a distinct Etsy style and showcase the items in our marketplace in such a way that buyers can't help but admire.
Oh yeah, they work so hard they forgot to learn to count to 20 and to learn the difference between mod and grunge. In fact, many of the items in the feature were mod (i.e. 60s-ish) and not grunge, so they were just using a popular label to get views. Isn't mistagging also against the TOS? Oh wait, that's right, only if you're not admin.
(Thank you to those who sent us the link to the article. You can send tips and rants to firstname.lastname@example.org)