I saw that response and I just about went apey behind my keyboard. An outright denial of logic-based argument is absurd and has no justification, in objective debate or elsewhere.
At least s/he saved me the trouble of doubting hir ignorance by just coming out with it. Not everyone on this board is like that, from what I've noticed, but there are a few who are easily swayed and don't really put much skeptical, discerning thought into their judgments. The few who are like that aren't interested in an actual debate; instead, they dance around an issue, throw out non sequiturs and try to change the topic, and then provide pseudo-intellectual justification for it. Luckily, they are few and (for the most part) quiet.