I believe they are threads created by Magical Realist specifically to claim science is a valueless, empty ideology, which is a history he denies.
You're just speculating about MR's motives. But even if you are right, what's so heinous about feeling that way?
The threads you linked to are mostly very good threads in my opinion. Let me address them, one by one:
http://www.sciforums.com/threads/science-and-the-naturalistic-fallacy.135800/
This one is about the broader cultural tendency, illustrated from environmental activism, through social Darwinism to the myth of the noble savage, to imagine the state of nature as something good. The more mankind alters the pristine state of nature, untouched by human hands, the worse it is. How much truth is there to this?
http://www.sciforums.com/threads/theory-predicability-and-truth.142326/
I already discussed this one. It's about the instrumentalism/realism distinction. Should scientific theories be imagined as calculating instruments for correlating observations? Or do the terms ot the theories actually have reference, naming entities and states of affairs that actually exist in reality? Ernest Mach famously believed that atoms are imaginary creations that enable chemistry to be more easily conceptualized, but didn't think they existed in real life.
http://www.sciforums.com/threads/is-there-a-place-for-woo-in-science.142330/
The title might put a few people off, but the thread is actually about the sense of wonder in science, Carl Sagan chanting "billions and billions" on his old TV show, as beautiful images of galaxies are displayed and the music swells. That sense of wonder at the grand scale of the universe is probably what attracts many students to astronomy. More abstractly, many students are probably attracted to physics by the sense that the deepest secrets of the universe are unveiled there.
http://www.sciforums.com/threads/why-do-most-people-find-science-boring.142842/
I think that many people on the street do find the real study of science dry and boring. So do most high-school and college students, I think. Why is that? What can be done to improve science teaching?
http://www.sciforums.com/threads/is-science-a-value-system.144053/
I already discussed this one too. What values does science embody and try to maximize? How do cognitive values like truth and objectivity differ from values like morality? What is the place (if any) of personal, political and social values in science?
http://www.sciforums.com/threads/the-ideal-of-the-noble-scientist.148018/
Popular culture does tend to imagine the scientist as kind of demigod. Science is popularly imagined to embody a higher standard of reason that the rest of society should emulate. Scientists are imagined as having a higher purpose, the penetration of the deepest secrets of the universe. There's still a hint of the medieval cloister about it. It's not just a job, it's a
calling. What truth is there to this?
http://www.sciforums.com/threads/the-truth-shall-set-you-free.155164/
Does knowing more and more about physical reality, accumulating more and more facts, really make people into better people? Does it make people more ethical, happier or more spiritually fulfilled? In other words, what is the place of scientific value in the broader spectrum of human values? MR also asked the interesting abstract question whether truth is an end in its own right, or does truth's value only consist in enabling us to maximize other values?
http://www.sciforums.com/threads/truth-vs-a-comforting-belief.155501/
Would you rather believe the truth or to believe a comforting untruth? Suppose you have an incurable terminal disease that will leave you feeling fine for months, then kill you suddenly. Would you rather know about it or live out your last days believing you are fine?
http://www.sciforums.com/threads/why-many-scientists-are-so-ignorant.155617/
This is about Bill Nye (the science guy) saying some foolish things about philosophy. The false suggestion that Nye was speaking for all scientists (Bill Nye isn't a scientist himself, he was trained as an engineer before he went into show business) wasn't MR's, the thread title is the title of the article he linked to. But there is a real issue worth exploring here: what is the relationship between philosophy and science?
http://www.sciforums.com/threads/the-myth-of-the-noble-scientist.156020/
This one covers the same ground as the similar thread up above. And it's true that MR did express more personal hostility towards scientists in this one. (But so what?)
Magical Realist did not develop those topics along the philosophical lines you advocate because his vested interest is in promoting fringe ideas, not questioning those ideas.
I think that what threw some of the threads off course were the attacks MR received from people unable and unwilling to discuss the topics in the original posts. MR was attacked, he defended himself, and the threads quickly went off the rails.
That's one reason why, if Sciforums wants to promote a higher standard of discussion, that the moderators should try to conduct discussions much as professors conduct class discussions in their classrooms. Try to keep threads focused on their issues by gently nudging them back when they drift. Ideally, moderators should have some academic background in the subjects they moderate, so if some issues fly over the heads of some participants, they can be brought up to speed with some short explanations.