I vote it is mostly bullshit

Alcohol itself is likely poisonous to the plants roots. A friend of mine said it may be the glucose in the alcohol that gives the buds a little kick. I think the flavoring natural or artificial may affect the taste too. So if Jack Daniels has an effect imagine what Captain Morgan’s Spiced rum would do. Maybe too mush.

As I see it doing these kinds of things to a healthy plant is a novelty and will be effective only if you TELL the people that smoke it afterwards. “Oooh Ahh give me another it of that whiskey joint.” (People can be as dumb as they are smart) Sure a small benefit may actually be realized but in my mind there are more chances for disaster than success.