No man, I'm not trying to make enemies or anything but what I took from your statement was that the water was the meat of the denitrifictaion process. You can add all new water to already established LR and there will be no difference then if you added pre-existing water. (assuming your salt is pre-buffered, which most are)
It sounds like all this guy is doing is taking LR from his one tank and putting it in a new one. Now maybe there will be some sort of spike with a new SB but minimal if any. But yes, if he wants to put water from his existing tank into his new one more power to him, it just won't have any effect on a cycle or bacteria for that matter.
I think we agree but we're just not conveying it correctly.