diatribist

diatribist

(ˈdaɪəˌtrɪbɪst)
n
(Rhetoric) rare a person who uses diatribes in his or her speeches or writing, etc
References in periodicals archive ?
This is also a common technique of the diatribist who turns the opponent's objection back on him.
History will come along to hand out verdicts on everyone in the chattering class, from Raines on down to the most slatternly Fox News Channel diatribist. Raines should hope history is less moralistic than he.
Now, this rather dour collection of scholars and diatribists - Allan Bloom, Hilton Kramer, John Silber and so on - are not a particularly appealing group of people.