Rose City Comic Con has changed its costume policy to ban "reminders of unspeakable atrocities," including "Old School Hydra and Red Skull or any other Nazis from entertainment properties." Violations of this rule will result in a lifetime ban from the convention.

The change was made to the website yesterday, and appears to be in response to cosplayers dressed in Hello Kitty Nazi SS uniforms, whose appearance at the show was reported by Claire Napier at Women Write About Comics.

Rose City Comic Con's Twitter account tweeted:

Giving everyone the benefit of the doubt backfired over certain cosplay. We apologize & have updated our policy. https://t.co/o56b3ehIaX — Rose City Comic Con (@RoseCityCC) September 14, 2017

And explained:

Cosplayers associated with SS gear; we first thought it was offensive, but permissible. That was wrong & we won't allow it again. — Rose City Comic Con (@RoseCityCC) September 14, 2017

Previously, the section on hateful symbols said the following:

"Hateful symbols aren't welcome at Rose City Comic Con. Historical costumes can be great, but reminders of unspeakable atrocities are not appropriate."

But it has now been updated to read:

"Hateful symbols aren't welcome at Rose City Comic Con. Historical costumes can be great, but reminders of unspeakable atrocities are not appropriate – this goes for Old School Hydra and Red Skull or any other Nazis from entertainment properties. Those figures, while comic-related, are still very much Nazis. As a result, they are 100% banned, always. This includes any sort of "ironic" or satirical costumes that re-appropriate Nazi paraphernalia or gear. You won't just be banned from that year's convention. You will be banned from coming to RCCC for life."

Banning Nazi cosplay sounds like a no-brainer of a good idea, but we are forced to wonder: what about retailers wearing those Marvel Secret Empire promotional Hydra t-shirts?