I am a professional horticulturist with 32 years exp in the field, growing, R&D, consultation. I operate an organic produce farm, participate in R&D with the local college, and have been cultivating and breeding cannabis for 30 years.
As we say, just because you have been growing (X amount of time exp; 12 years) does not mean you have been doing it right.
I just hate to see such bad info spread far and wide by "trusted" members. At least learn the basics of horticulture, it won't hurt to learn I promise.