Quote Originally Posted by Naysayer View Post
Hollowed Helm update:

Ok, after the trade expiration was up (i was offline) I logged back in and the alt shaman DID get credit for the achievement. I don't know if you can pass one hat around and get credit, but I did get credit for one hat on two separate characters for trading it once.
I think they hotfixed this.

I just tried this - traded helm to another toon, waited for trade deadline to expire, logged out and back in - didn't have credit