I'd wager that represents the majority of religious scientists. I'm not disparaging faith itself (not here at least), just creationism and denial of evidence because it is contrary to preconceptions. Why I consider creationism as contrary to the hacker ethos is precisely because being a hacker involves thinking outside boundaries and engaging in playful curiosity (often with a disregard for established authority). Creationism is mental gymnastics to support an established orthodoxy. It's excessive effort spent to explicitly avoid exploring the boundaries of one's own beliefs.
Honestly, I don't know on the throwaways and I don't blame you for the assumption. By all accounts, this would look like a throwaway. I don't think there's a great word for it, and my pattern of social Internet use is admittedly uncommon.
I disagree that they aren't off-topic. It's an article about a specific observation of evolution, and their response is to question the entire reality of evolution as a whole. It's like the people who go into a programming language update announcement to complain and trash talk the language (which happens a lot in Rust submissions in particular). I also think it's inordinate. It's likely a tiny minority of people who think this way, but because they are the loudest, they still managed to determine the topic for the entire comment section. Thus there is much argument and disagreement over something that the vast majority of scientists and commenters here already agree on.
Edit: I also find it funny, in retrospect, that this is an exact example of Poe's Law as originally stated.