You have no idea what you're talking about. Literally. Did you read what I actually wrote? Nowhere did i so much as imply that poor grammar invalidates an argument, which is what you accused me of. Further, the word sin is not exclusive to religious discussion. Your diatribe on that one is either red herring or, again, a straw man. Learn how logic works before you say anything else stupid. As far as your silly idea that flaws in logic are less forgivable than flaws in grammar, you should--again--read what I actually said. My reasoning is unarguable: it's worse to fail at something easy than it is to fail at something difficult. You wouldn't say someone who can't walk a tightrope is inferior to someone who can't stay on the sidewalk. Thus, failing at grammar, which is the more fundamental skill, is worse than failing at logic, which can be much more subtle. But all of that is irrelevant to the point I made: if you question someone's intelligence in a way that showcases your own intellectual failings, it's perfectly legitimate to point out the irony.