ok, lets start with this statement: " Next time you’re burning a bowl of Kush or whatever your favorite bud of the day is, pay attention to how hard it is to ignite the bud and keep it lit. Also look at whether the bud burns to a fluffy white ash, or something darker and denser. If your bud is properly dried/cured but hard to light, it’s full of fertilizer salt."
Total bullshit! Black ash, slow to light bud is caused by sugars and or moister still in the bud. That is the result of improper drying and or curing. "flushing" only removes one thing from your buds, sugar and it does that by starving your plant and making it use the last sugars the bud has made. The nutrient ions in the buds are immobile, you cannot le4ach them out and the roots have nove way to move them out either. This whole "flushing myth has been around way too long, its time for people to look at the science of how plant take in nutrients to understand why.
here's another: burning bud popping and sparking is magnesium in the bud....now we are talking magnesium concentration measured in parts per million. Do you really think that’s enough to make sparks? Sparking/popping is caused by insect bodies exploding from the moisture in therm boiling off.
So the only real possible benefit of flushing to to make the plant burm up its sugars. Personally, I prefer to chop healthy plants at their peak of ripeness.
And you don't see farmers " flushing" their tomatoes...........