Panama, not sure I get the meaning of your post. As I said, there is no requirement for the acknoledgement of a command instruction as FT asked. The Canadianisms he mentions range from using the term "roger" INCORRECTLY, as well as some of the other phraseology that I have heard used, that ranges from "that is correct", "readback correct" or simply "correct". Wilco isn't even appropriate in the context of replying to an ATC command instruction, especially when a readback is required. From my asking around some of the more experienced controllers around here, it seems it was one of things that was required years ago that has hung around.
BTW, Blighty is an affectionate term for England. Perhaps I should have typed "as to opposed IN Blighty where......."