@edgarblythe,
Yeah, I do that re religion threads. I do read science threads but that can mean that I thumb down the anti science blowhards, at least part of the time, especially if they are off topic.
I don't thumb down posts all that often, usually either argue or just leave or sail someone onto ignore, but in the case of some of our people who know science, I want to listen to them and learn and I don't like what I consider lengthy and ignorant disruption on threads the scientists started. Soon enough, I use ignore, and still read what the scientists say.
Adds, if the anti science person started the thread, I don't interfere.