Re: Despite dispute over the very existence of the syndrome
John: I suspect that this is just poor phrasing. If Mage had said "imagined" rather than "imaginary" then that would have been clearer that the *cause* is not real rather than the symptoms. (The placebo effect is perfectly real, to give a related example.) As you say, since the symptoms are real, we ought to deal with them.
Picking up on your example with wasps, you don't even need the wasp. Most people can be adequately freaked out by a loud buzzing sound behind their neck and the people standing in front of them saying "Wasp!". To get from there to electrosensitivity one only needs to slowly crank up the implausibility of the cause and the severity of the symptoms. Both can be done on a sliding scale and there's no objectively right place to draw the line.