Hmm, I will have to see how I did it then. On my daughter's board during the registration process I allow an initial single message to a registration forum using the WYSIWYG editor with almost no features. I must have made a small modification. If I can figure out what I did, I will post it.
Well, maybe it won't work. Now that I think about they do have a username by the time they leave a message, they are just unregistered at the time they leave the message.
Oh well.
--------------- Added 17 Sep 2014 at 03:04 ---------------
Here you go, I just worked this up. Please be careful as this can open up your board to all sorts of nasty things if implemented unwisely.
Create the following plugin at hook: "editor_wyswyg_compatible"
Code:
// TBWORLD - Enable CKeditor Wysiwyg Mode on 'Unregistered' usergroup
// HOOK: editor_wysiwyg_compatible
// - UserGroup Manager - Thread Permissions should be set.
// - Forum Manager - BB Code Permissions should be set.
// - Custom BB Codes are enabled, so be careful!
// - Clear caches after changing setting.
// Unregistered User Group Only
//----------------------------------------------
if (is_member_of($vbulletin->userinfo, 1))
{
// CKeditor mode
// $choice (0 = simple, 1 = standard, 2 = wysiwyg)
$choice = 2;
}