You're right, of course, but context makes a big difference. Those two religions have vastly different positions in the English-speaking world. And the post doesn't appear to be putting down anyone's faith, just asking a weird question. And then the submitter has a long and singular history on HN, and I mean singular literally: https://news.ycombinator.com/item?id=926350.
So as long as no one gets vicious I think it's ok.
So as long as no one gets vicious I think it's ok.