Please stop using snark. Use snide, sarcastic, or cynical instead. Snark is a word that's better off being forgotten in some dictionary of colloquial terms.
"Snark" means "snide remark" and is absolutely not an HNism. Hell, I think I learned it from my mother (who no doubt used it at me). Despite heavy use, the word retains clear meaning, even as used by stanleydrew above in his otherwise foolish comment.