Sometimes misinformed people will make statements that are scientifically incorrect. When correct information is posted to help them understand they get defensive and pissy. I don't post sometimes when incorrect information is posted because of these responses. The bad thing is that some other PC members then believe that the misinformation posted by the OP is scientifically valid.

I try to be supportive. To me that means not only emotional support for bad moods but helping people to understand valid scientific ideas based on research. But if people would rather believe an idea because it sounds good and they don't want to know the research that disproves the idea what do you do?

Honestly, what do you do? Do you post the correct science so at least other readers will know that the OP is misinformed or do you just let the OP feel better because they don't want to be wrong?