I totally agree you are, sorry, are not a stubborn arse. Forums should moderate themselves in the ideal world and will do if we are a little outspoken at times. It is always difficult to convey humour etc., in this medium, hence the emoticons. Humour is one of the great spices of our lives.
I said I was outa here but you post says all that needs to be said I think. I will post the conversion list anyway as a new topic so that newbies et al can refer to if need be.
On your other points Darth, I totally agree also (as professional Cook along with my family who are also professional cooks and Chef) that if you cook large quantities it does not matter one bit if you err either side of a general measurement, as long (and this I see has been said many many times on this Forum) you do not use too much of an ingredient that has a very powerful flavour, e.g. Garam Masala. For small dishes I would say the same, as you are unlikely to be using large measuring implements. But what the hell; we got to this wonderful and diverse range of magical recipes because people made mistakes!!!

Anyone who was around when BIRs arrived on the High St in the 60s will surely tell you what a nightmare it was getting them to cook a half decent curry to suit our palates, a lot of them were still in the ex pat curry mode making curries with raisins and fruit and serving them up with dessicated coconut, sultanas, and sliced bananas as side dishes

yuch.
You pioneers are doing a great service to the world, and I wouldn't be suprised if a few OBEs were thrown your way :

(Where do you pin a gong on a Darth suit?)
May the peace be with you
CP