There are lots of people for low carb and the opposite as far as I can tell. I go by this: I believe the minimum recommendations are 100 g of carbs each day to have, otherwise there could be a risk of ketosis. However, everybody is made up differently, some have faster metabolism, some slower, some fit and vice versa. I actually think about my weight and my BG's in relation to the carbs...if my weight is remaining level I stay around 130g a day, if I want to lose then I lower my carb intake slightly to about 110 (I never want to put weight on, but if I did I would increase my carbs), and my insulin is worked out accordingly. I'm 5'6" and size 10 and this has allowed me to be this for almost 25 years. My Consultant hasn't mentioned the qty of carbs that I take, just that I need to keep my bolus/basals about 50/50.
Had friends around a few weekends ago who talked about diets and some of the community diet clubs they go to counting in what used to be points. They were staggered as to just how easy it is to stay healthy by counting carbs and not having excess carbs and excess weight....instead of counting their points now, they are looking at their carbs....and they are non diabetics.
My DSN couldn't lecture me, as she is at least double my side, so I feel quite lucky!!!! If she did, I think I would ask her if she counts her carbs!!!