The IMTU code is a picture of how you run your Traveller games; the assumptions you bring to the table as a referee, or even as a player. Others can use it as a clue about what your games are like, and how close it mirrors the Official Traveller Universe (OTU), without claiming priority over the OTU itself.
The OTU code is for divisive or contentious positions. In this sense it is complementary to the IMTU code. The typical reason for contention on Traveller forums has to do with the Official Traveller Universe -- topics which spring up and threaten to unseat or replace how the Official Traveller Universe works. In trying to sift out how things "ought" to work, we may form strong, often immovable convictions. That's what the OTU code represents.
Certain issues are NOT holy wars, in that sharp divisions of opinion do not seem to revolve around faith. One example is Proto-Traveller. Even "High Guard versus Book 2" isn't usually a holy war. This is because a holy war requires one person to believe they are "right" and the others "wrong": in the case of HG vs B2, both sides can claim to be right, but neither can reasonably argue that the other is wrong. Thus, no holy war. Usually.
Also, personal opinions are often not holy wars, either, no matter how strongly held. In order to be a holy war, there needs to be protracted discussion, as outlined in the above definition.
Just for grins, I'm calling people who engage in holy wars Quixotes. It doesn't sound like a bad title, but I don't think it's particularly complimentary. I'm one, by the way. Quixotes generally are uncomfortable with the idea that their discussions could be considered Holy Wars, and usually are convinced that only one side can reasonably claim truth (theirs).
This isn't formal or anything, but I think the best way to represent your OTU/holy war codes is to have a line separate from your IMTU code. Call it "OTU" or something. This way the IMTU code doesn't get its hands completely dirty with holy war issues, and so if you want to be more coy about your beliefs you can stick to the IMTU only.
I also suggest that you indicate the percentage of codes which you find yourself firmly opinionated on; i.e. the percentage of issues you have a code for in the Holy War index. This in itself should tell you and others something about you:
0-4% Laissez-faire. 5-27% Easygoing. 28-72% Opinionated. 73-95% Strongly opinionated. 96-100% Perhaps you spend too much time with Traveller.
But really, use them however seems best. If this ends up being useful, then we'll probably standardize on a format. Otherwise, it doesn't matter, does it?
Please note: these codes are for your strong feelings only. If you're on the fence or willing to temporize on one of these, then it's not your Holy War. Just let it pass.OTU 44% an+ dt+ ge- j- jf+ n- pi+ pp+ tr+ tv- uwp+ xb+