That was not the one I was suggesting as being the same, but I guess I was not that specific in my previous post.
I was referring to the following quote from Message 5 above:
"If I remember correct the "Application.UserName" is the name that you will find in your application options. Not very save I expect."
Both the older properties: Application.UserName property and Application.GeneralOptions.UserName property appear to always have the same value. We have always set the value of Application.GeneralOptions.UserName (the one in the Application Options / General tab) to the value we want to see in the TitleBlocks of all our drawings. We prefer to use a different formatted UserName in our drawings & CAD files than the UserName of our Windows operating system sign-in credentials.
Wesley Crihfield

(Not an Autodesk Employee)