Any article about whisk(e)y
is inevitably going to have snobs in the comments declaring how others should enjoy their drink (though I do enjoy them revealing their ignorance along the way).
Have it however you damn well please. A small amount of water is perfectly normal (it's typical in Scotland to be offered a small jug of water, and as the anecdote above points out this is accepted by people who drink it for a job) and ice can be very pleasant, partly for the cooling and partly because as it melts you get differing flavours come through. And sometimes you want that throat-stripping blast of raw alcohol.
Still, I think we can all agree that these stones are a terrible idea. Unfortunately, anyone who is known as a whisk(e)y drinker risks receiving this crap as a gift at Christmas. Serving suggestion: smile, act grateful and chuck them in the garden when you get home.