To Mojotronica,
I must admit that I agree with the others: a new Forum would not be appropriate.
The Customisation & Creation Forum is for people who want to change the existing rules
.
The History Forum is for people to discuss real world events
.
And the General Forum is for talking about just about everything else related to Civ3.
Whereas the Completed Units Forum cannot be argued with (oh, people can comment on the visual aspect of the new animation, but the fact is the new unit is
THERE for all to see and use, misuse, or ignore, as they see fit), when it come to rule changes in the editor, then everything depends upon each individual persons perceptions:-
....some people dont like Spearmen defeating Tanks, while others accept that in war the unexpected happens....
....some people hate corruption & culture-flips, while others like them....
....some people (all right,
ME! 
) think that infantry can defeat other infantry, while others think that only mounted troops should be able to win battles....
Nothing is concrete: no two people agree about what is realistic.
However, having said all that, I
DO understand what you are saying, and I do partly agree with you.
So I have a suggestion Mojotronica.
How about if you start a new threat in the Customisation Forum where we can post all our ideas and editor tricks.
It could be called something like Suggestions For Modifying Existing Rules For More Realism (the word existing is important, otherwise people will think it is just another wish-list for Civ4).
This would be a nice place to put all the tricks, tips and ideas that I and others have collected over the past couple of years.
With luck, people will also post their own suggestions and observations, so that it will become a sort of realism ideas library that people could browse if they want to create a mod or scenario....or if they just want to spice up their own version of the game.
If you do decide to start this thread, then here is a short selection of some of things Id like to post (most of these have already been posted before. But, as you have mentioned, they are scattered in many different threads and hard to find):-
*Making Galleys wheeled and oceans impassable to wheeled to stop Ancient world colonization.
*Allowing forests to be mined to stop the AI cutting down every tree in sight.
*Making mountains impassable and the effects this has on the realism, challenge and visual aspect of the game.
*Making AEGIS Cruisers carry Cruise Missiles for more realism.
*How to slow down the tech race so that Tanks dont appear in the Middle Ages.
*Why some foot troops should have 2 move points (skirmishers).
*Defensive bombardment: its effects and how to add it.
*The visual realism of not allowing cities to be built in deserts & tundra.
*How to make Shaman, Druids, Monks, and Priests lower the enemys morale by using defensive bombardment.
*And (of course), the fact that in reality infantry CAN defeat other infantry.

....plus many, many more.
I think it would be best if you yourself started this thread. After all, it is your idea.
(Besides, if I started it, people would just think it is Krytens Rant Corner, as mrtn so eloquently put it!

)