[cuergas]

One implication is that people making arguments do not necessarily have to believe in them. And that anyone with adequate rhetorical skills can make any argument, even one that is not consistent with what they truly believe.

Example: Readers might believe some rambling gibberish about there being no need for any startup founder to have a conscience, and they might attribute it to the poster's own beliefs (it's ok not to have a conscience), when truthfully the poster might believe otherwise (he does not really believe in screwing people over, to the point of having no friends or a lifelong reputation as a con artist) and might just be advancing an idea that would benefit his business: the more social networking startups and the more money flowing into them, the better for those who take a cut.

The other implication is that you have to first understand a position in order to argue it effectively. The claim here is that one commenter does not actually comprehend the other commenter's position. And an easy way to show this is to ask each commenter to argue for the other's position, instead of against it.