I don't know that anyone was talking about the NPK elements of synthetic fert being good or bad. At least originally, salt was the problem..
I am curious about the salt coming from from the synthetics. Kiril had some nice photos of the excessive salt areas, but what about lesser amounts brought in with the ferts?
Well reasoned rational thought is the ONLY way to prove or disprove anything, rather than the foolish insults of those incapable of putting together the thought processes necessary to accomplish conclusions...