If anyone is referring to me than I would say that I am not, and have never proclaimed to be, either here on this forum or elsewhere.
However, I do hold a BSc (Batchelor of Science) degree in Geographical Studies, and also possess a BEd (Batchelor of Education degree) as a teaching qualification.
I would also say that my personal knowledge of the fast and of Natural Hygiene generally surpasses the knowledge obtained by the former two.
I am therefore a self-styled expert in my non-credentialed subject, and very proud of it.