Sorry, it was probably me that got us unpinned.
There are still people out there that do not know this happened.
I posted a reply in one of WoW’s YouTube shorts to the effect of, “You can get busy restoring our guild bank items.” And several people replied that it was other people just stealing from the banks n stuff. So, I replied to them with a link to this thread, proving it was Blizzard’s fault. Then it got unpinned. 
Maybe it was just a coincidence, too.
You can still do the right thing corporate Blizzard!
RETURN OUR STUFF!!!