Personally my only gripe with stone, aside from not caring about imperial at all so the only reason I've learned some was because I was in Murrican circles for a while, is that it's fucking 14 pounds.
Why 14? Who knows, it's the most arbitrary dumbass idea, since 14 is divisible only by 7 and 2, as opposed to making it 12 (for divisibility) or 10 (because of decimal counting system)