I specifically refer to
this by "emmasnacker," talking all sorts of conspiracy theory stupidity about HAARP, the High Altitude Atmospheric Research Program. Although apparently having quaffed deeply from the short-wave nectar of conspiracy high priest Art Bell, "emmasnacker" accepts (reluctantly?) the comment of one respondent poster to his/her diary that there's nothing sinister about HAARP.
Unfortunately, s/he then goes on into further nutbarrery in a post of her own to the selfsame diary, talking about the nonexistent "chemtrails."
Well, there's only one suitable response.
My mom believes she
DID NOT have a stroke because chemtrails caused her "arm problems."
Oh, she'll talk about her "arm problems," but she'll never use the word "stroke." She stopped her rehab, avoids her cholesterol meds and tries to avoid doctors.
I wish I could think of a secular version of hell to which I could send people who consciously promulgate this crap.