Hi TDR, the reason we ask for sources is mainly for people to show us they know what they're talking about (and are also not just advocating one side of a 'controversial' issue). Too often people claim something should be changed because they saw for example a documentary on Discovery the night before which mentioned something else or they recall they read something on the web somewhere, some unspecified time ago, etc.
Changes in OB's can have far reaching consequences. It affects existing scenario's, campaigns, AI pick routines, sometimes specific code and off course player mods.
So changes to OB's are balanced on (quality of) content, whether it will enhance the game significantly, the amount of work needed to put into the changes and checking for unforeseen consequences, etc by the designers and some other things aswel (like available time and priority for other things that need to be done).
Major changes are unlikely but minor ones are possible. Take this thread for example:
http://www.shrapnelcommunity.com/thr...b=5&o=&fpart=1
Narwan