Well, I read his post as saying that (paraphrased) "... those people who get kicked out of GA for being cowboys, can't fly etc. i.e. the shallow end of the gene pool, gravitate to RA-Aus because of the lower minimums, isolated nature etc. and get a certificate and proceed to crash." This is quite different than "everybody who is in RA-Aus is in the shallow end of the gene pool and shouldn't be flying."
I do not know Sunfish from a bar of soap, but I do get annoyed when people cannot read critically what people write and then abuse, sprout off etc. because of a misinterpretation.