You might have heard or read the joke:
A woman called up her husband's cell phone and said, "Be careful coming home, honey. I just saw on the news that there's a wrong-way driver on the road." Her husband replied, "
A wrong-way driver?? There's hundreds of 'em!"
Behind the joke, there is, of course, a moral. That man's going against the flow males him a public menace. He needs to be stopped, even though he sincerely believes everyone else is wrong.
At what point is it appropriate and necessary to stop "being nice"? Some controversial topics, on Permies and elsewhere, can arguably be compared to the traffic situation in that joke. I hesitate even to get specific, because after all, I only recently got enough apples to post in the cider press. I will therefore use an example I have not yet seen on Permies.
There are people in this world who reject medicine's current explanation of HIV/AIDS as a sexually transmitted retrovirus. Some have claimed that AIDS is caused by illicit drugs such as poppers, malnutrition, or even anti-HIV drugs themselves. The case of Christine Maggiore is a well documented one. She was HIV-positive. She wrote a book,
What If Everything You Knew About AIDS was Wrong?, in which she basically revisited all of the early hypotheses that were being tested back in the 80s when AIDS was new and not yet understood; all the scientific papers she cited were from that era. AIDS research had long since rejected those hypotheses and moved on, but Maggiore and others like her tried to revive them. When her baby died of AIDS-opportunistic pneumonia, Maggiore put out an alternate theory, that it was a bad reaction to amoxicillin (used in treating the pneumonia?); when Maggiore herself died of AIDS-opportunistic pneumonia, "again the AIDS denialist community made excuses, claiming it was caused by a "detox cleanse" that left her too weak to fight off pneumonia and playing all sorts of games spinning and denying the obvious." (Quote from
RationalWiki's aritcle on Christine Maggiore )
I was schooled as a scientist, see? In science, we have a principle called Occam's Razor. Basically, it means that we go with the simplest explanation that explains the data. If the denial movement is coming up with different explanations as to the cause of different HIV cases, that violates Occam's Razor; it is simpler to say that one disease has one cause, unless we have clear evidence that we are in fact dealing with two similar-looking diseases. And in this case, the denialists are as dangerous as a wrong-way driver: if they succeed in convincing people not to treat HIV, people will die who otherwise would have lived.
I am always wary when someone advocates going against mainstream medicine. Medical research has had a long time to prefect its methods and techniques, and although not perfect, it has made life-saving advances even within my own lifetime. Conspiracy theories about "Big Pharma" may appeal to deeply felt convictions, but I have yet to see the opponents of mainstream medicine approach their practices with anything like the scientific rigor I was taught to use. "Be nice" is a good principle in general; but sometimes stating known facts is taken as "not nice" by people who prefer to believe otherwise.