Hmm. I am also having trouble getting the 'Enable Unconfirmed/ COPPA message' to work.
Everything was working okay at one time. I discovered today that the unconfirmed message was not appearing when investigating a user's question.
So, I upgraded to vBulletin 3.6.5 and upgraded welcome headers. That did not help.
I confirmed that the options settings were activated in the 'Welcome Header Messages' section of the config. I checked that the welcome_unconfirmed phrase was in place.
The guest message shows. But with the new, unconfirmed user I just created, they neither get the "unconfirmed" message, nor the "never posted" message.
Any suggestions on what I can check next? Any help would be appreciated.
My forum is at:
http://forums.finalchallenge.net
Thanks!