In the linked article, [email protected] uses the CORREL function in an openoffice spreadsheet to determine a weak correlation between autism diagnoses and sulfur content in tap water in a few regions of New Jersey.
His other publications include a self-published amazon book titled Autism, Enzymes and the Brimstone Demons. [1]
So does that mean you are persuaded or that the author doesn't have the right pedigree for you to listen? Because when you set aside the author's idiosyncrasies, there is indeed something remarkable.
Drinking sulfate won't repair broken sulfur metabolism, but it's completely plausible that a subset of people maintained adequate day-to-day function with the benefit of sulfate-laden water, and now fall below the threshold with sulfate mostly removed.
His other publications include a self-published amazon book titled Autism, Enzymes and the Brimstone Demons. [1]
[1] https://www.amazon.com/Autism-Enzymes-Brimstone-Demons-Trill...