Don't worry, I'm aware. The problem is the "I made these last night," part. Free to use or not, it's not okay to claim another person's art as their own. That said, anything can be undone and reversed, so the member is free to talk to staff and we'll review their case.
I appreciate you speaking up though. It does mean a lot to me and, moreover, the members. We're not an organized or professional group like you guys, but A&D teams get our kicks doing fun projects now and again. I just want to make sure it stays fun and safe for everyone. :)