I believe I can make an educated guess at to the ID of the mystery disparager.    From Wordnik.com.  [Am I a Professional Wine Writer?] Reference

Ironically, you can find the same fault in Lewis's greatest contemporary disparager - Philip Pullman.    From Wordnik.com.  [Archive 2005-12-01] Reference

Lest we not confuse the clown of today with the P.T. Barnum of 2000, there was John McCain, former prisoner of war, former disparager of the politics of personal destruction, former critic of the tactics and ads of the Chambliss campaign of 2002, speaking out forcefully for that very individual.    From Wordnik.com.  [Lance Simmens: Georgia on My Mind] Reference

Argentina, which has an enormous area of agricultural lands and enormous herds of livestock, the second best nourished country in Latin America, with almost 3,000 calories and almost 80 grams of protein per person per day, as was recently recognized by an institution that is an enemy and disparager of the Cuban revolution?.    From Wordnik.com.  [25TH ANNIVERSARY OF CUBAN REVOLUTION] Reference

Bracciolini, and not Tacitus, a disparager of persons in high places.    From Wordnik.com.  [Tacitus and Bracciolini The Annals Forged in the XVth Century] Reference

Warren Sapp is hired by "Inside the NFL" producers as full-time headshaker and Raider disparager.    From Wordnik.com.  [NFL Football News | Realfootball365.com] Reference

By SHIRA OVIDE.And LAURE. A.E. SCHUKE. How does a professional disparager honor a nondisparagement clause?.    From Wordnik.com.  [WN.com - Articles related to Carell tees up a comedy] Reference

When she had reached a point where to decry her success was to proclaim her disparager envious or absurd, she would be satisfied; until then, she considered herself no more successful than the failures about her who yet found room to laugh at her.    From Wordnik.com.  [The Fighting Shepherdess] Reference

Readers of Arthurian romance are all familiar with Sir Kay; they will find that in Chretien, the seneschal, in addition to his undeniable qualities of bravery and frankness, has less pleasing traits; he is foolhardy, tactless, mean, and a disparager of others 'merit.    From Wordnik.com.  [Four Arthurian Romances] Reference

Fortune, the standard-bearer of the Jovian legion, which Varronianus had formerly commanded, having had a quarrel with the new emperor while he was a private individual, because he had been a violent disparager of his father, now fearing danger at his hand, since he had risen to a height exceeding any ordinary fortune, fled to the Persians.    From Wordnik.com.  [The Roman History of Ammianus Marcellinus During the Reigns of the Emperors Constantius, Julian, Jovianus, Valentinian, and Valens] Reference

These actions are the most undeniable proof of his habits and real character; but even the most obstinate disparager of his disposition cannot deny him the praise of great ability, which never forgot the interests of the state; especially when it is recollected, that perhaps it is a greater and more beneficial, as well as difficult, task to control the barbarians by means of an army, than to repulse them.    From Wordnik.com.  [The Roman History of Ammianus Marcellinus During the Reigns of the Emperors Constantius, Julian, Jovianus, Valentinian, and Valens] Reference

And, contrary to the experience of anyone who has actually spent any time leafing through volumes in the fiction section of a relatively well-stocked bookstore, a Point-of-View Nazis will often, like the disparager of italics, insist that any manuscript that does not follow his dictates has the proverbial snowball in Hades’ chances of being published.    From Wordnik.com.  [Author! Author! » 2006 » October] Reference