Habermas(yuck!)? Why not Kenneth Burke?
Kenneth Burke wrote in "The Virtues and Limitations of Debunking" in _The Philosophy of Literary Forms: Studies in Symbolic Action_, 3rd ed. (1st ed. published in 1941, Berkeley: U of CA P, 1973):
***** I think that the typical debunker is involved in a strategy of this sort: He [sic] discerns an evil. He wants to eradicate it. Hence, in order to be sure that he is _thorough enough_, he becomes _too thorough_. In order to knock the underpinnings from beneath the arguments of his opponents, he perfects a mode of argument that would, if carried out consistently, also knock the underpinnings from beneath his own argument....
...[I]n order to shatter his opponents' policies, he adopts a position whereby he could not logically advocate a policy of his own. And then, since there comes a point at which he too must advocate something or other, he _covertly_ restores important ingredients of thought that he has _overtly_ annihilated.... (171) *****
What we need here is a study of rhetoric, that's all.
Yoshie