Specifically this part:
I have no intention to give truth to enemies. (...) If a lie makes them back off, lying is good.
We have the Ethical injunction Sequence explaining some problems with this kind of reasoning. But the obvious consequence is that when you start doing this, and it becomes known (which probably happens soon enough -- but unless you succeeded in destroying the Science, it is destined to happen some day), you have done a great damage to the public image of Science as a side effect; which will cause many problems down the line.
As a trivial empathy pump, imagine how would you feel if your political opponents had this opportunity and would have no scruples abusing it. Of course, they would believe they are improving the world by doing it. And their beliefs might be wrong because of some other lies, which they would get from a trusted source. And the only institution for systematically finding the truth would be corrupted, for the supposed "greater good".
When scientists start doing this, Science is no longer seen as something that can determine whether the sky really is green or blue, but becomes merely another soldier on the Green side.
and it becomes known (which probably happens soon enough -- but unless you succeeded in destroying the Science, it is destined to happen some day), you have done a great damage to the public image of Science as a side effect; which will cause many problems down the line. [bold mine]
Also note, that of the two possible outcomes doing great damage to the public image of Science is actually the lesser evil, thus people who care about science should be pushing for this outcome. Unfortunately, since the harm to the reputation of science is more visible than ...
Paper by the Cultural Cognition Project: The culturally polarizing effect of the "anti-science trope" on vaccine risk perceptions
This is a great paper (indeed, I think many at LW would find the whole site enjoyable). I'll try to summarize it here.
Background: The pro/anti vaccine debate has been hot recently. Many pro-vaccine people often say, "The science is strong, the benefits are obvious, the risks are negligible; if you're anti-vaccine then you're anti-science".
Methods: They showed experimental subjects an article basically saying the above.
Results: When reading such an article, a large number of people did not trust vaccines more, but rather, trusted the American Academy of Pediatrics less.
My thoughts: I will strive to avoid labeling anybody as being "anti-science" or "simply or willfully ignorant of current research", etc., even when speaking of hypothetical 3rd parties on my facebook wall. This holds for evolution, global warming, vaccines, etc.
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Also included in the article: references to other research that shows that evolution and global warming debates have already polarized people into distrusting scientists, and evidence that people are not yet polarized over the vaccine issue.
If you intend to read the article yourself: I found it difficult to understand how the authors divided participants into the 4 quadrants (α, ß, etc.) I will quote my friend, who explained it for me:
I was helped by following the link to where they first introduce that model.
The people in the top left (α) worry about risks to public safety, such as global warming. The people in the bottom right (δ) worry about socially deviant behaviors, such as could be caused by the legalization of marijuana.
People in the top right (β) worry about both public safety risks and deviant behaviors, and people in the bottom left (γ) don't really worry about either.