This is an excellent piece of terminology, from Janes Hannam.
Blair’s conversion led to one columnist making a fool of himself. Matthew Parris, who is usually quite sensible, has a bad case of Russell’s syndrome. Regular readers will know that this condition afflicts men and women of high intelligence who are, in most respects, indistinguishable from their fellow members of the academic elite. However, the sufferer of Russell’s Syndrome (first identified in the third Earl [Bertrand] Russell), looses (sic) all his common sense, discrimination and reason when his mind turns to religion.