Badhorse, I often run supplies myself and yes it hurts your score. Now it comes down to 2 choices, 1) the heck with your country or 2)or this is how I can help my country. As for me, I like doing the things that help my country and yet I need to balance it with what the other things I enjoy. Now I wish it didn't hurt my score but that is the way it is currently. I know if I just bombed factories my score would be better as well. However, sometimes I feel the need to stop the advancement of base takers or cv killers so I go for strats. Bombing is not generally what I prefer to do.
When I see folks resupplying a field I always try to give them a <S> or a nod of thanks.