Discursive ad hominem, yawn. Discuss the implications of theft being okay if you are hungry, not the background of the person who suggested they disagree with that notion.
What kind of environment do you partake in discourse in that this kind of condescending contribution is acceptable? It sounds like you're taking your cues from the Comic Guy from The Simpsons. "Tu quoque? yawn".
The "yawn" is a bit flippant, but I don't see why it's condescending, he's absolutely correct. Your comic book guy reference seems to suggest that you think he's using big words to sound smart or something, but it seems like a pretty cogent response to a post that completely skips over the substance of the topic at hand and parades around unqualified assumptions about the poster as an argument.
It was a direct response to the "yawn, yawn, yawn" in the parent. If someone is going to behave like a asshole, they don't deserve much better as a response IMO. Life is too short.