Whiskey is one of those English words—like aging, center, color, maneuver, and many others—that Americans and Brits spell differently. American writers often struggle to use the British spelling when referring to scotch whiskey (i.e., 'whisky,' no 'e'). UK writers occasionally return the favor. An American would never think of spelling color with a 'u' just because the subject is colors used by an English painter, for example. Why should whiskey be any different?
I'm trying to start a trend in which American publications spell whiskey the American way, regardless of the type of whiskey being discussed. I would expect publications in Canada or the UK to do the same, favoring their spelling.
The sole exception would be that when stating the proper name of a specific product, the word will be spelled the way the producer spells it, and also be capitalized as befits a proper name.
Example: That sure was some good scotch whiskey.
Example: Pass me another drink of that Johnnie Walker Scotch Whisky.
Why do I think a change of practice is needed? The problem is that maintenance of the dual spelling protocol suggests that "whiskey" and "whisky" are two different words with different meanings when they are not. There is no definition difference between them. They are merely alternative spellings, with one preferred in the United States and the other preferred in Great Britain, along with a long list of other words about which nobody has this problem.
However, the maintenance of this pained protocol, which leads us to write things like "whisk(e)y" to feel like we're covering the category with a single word, also leads many people to conclude that, in fact, they are two different words with two different meanings, and they imagine all sorts of nutty distinctions.