I understand you were quoting the article but you were cherrypicking for intended effect. The bold effect was nice. The article didn't use that.
You failed to provide context in that the traits you spoke from the study were only from scientific forums and blogs. Forums like this were not studied at all. Your assertions based on the MJ article do not apply here in the case of general topics. Now if Cheryl's basis of assertion is wrong, then this will make yours equally wrong, or if you are right then Cheryl's original assertion stands.
Pick your poison!
I also suspect Slate had an agenda as well but to their credit it is a bit more nuanced.
There are psychopaths and then there are their enablers.