No, just that if fallacial logic was used, it was used by the poster he responded to. Responding to that argument in its own terms is not really committing the fallacy. One can object to or disprove a fallacial argument without challenging its fallacial nature.
For example, let's take the following hypothetical argument:
P1: All dogs have two legs.
P2: Socrates has two legs.
Therefore, Socrates is a dog.
Now, the argument is certainly fallacial, but I don't have to challenge its logical status to refute it. I can simply oppose the absurd P1 by presenting a four-legged dog. It doesn't mean I've committed the same fallacy as the person presenting the argument, or indeed any other fallacy. I'm simply objecting to one of the premises.