I know this thread has been dormant for some time so I thought I'd add my 2 cents.
I am new to this forum but I am not new message boards by any means.
I think I agree with Daddy that the NBS/OBS system is useless, vague, ambiguous and shortsighted.
Calling anything new or old really counts on people to be reading at the same time it is posted. I've seen several threads on here that have gone on for YEARS. As soon as the GMT 1000 or something comes out, people will call THAT the NBS, but other people will still think they are referring to an 02 or something. I remember when the 88-98s were called NBS, it just doesn't make sense. I know i'm not going to change a very old habit entirely but it helps to use the correct vehicle designator such as GMT 900 to eliminate the ambiguity that the NBS/OBS system introduces. I've owned a lot of vehicles and participated in many forums and it always makes the most sense when people use terms like TJ, MKIV, E46 (Jeep, Volkswagen, BMW) examples, for instance.
-Jer