We’ve all seen this video:
A lot of people are glomping on how unprepared the MSNBC hostess is to walk into that bit of a gaffe. Yeah, she’s unprepared and looks dumb.
However, more telling to her mindset is that she asks the question to dismiss the opinion of the member of Congress’s opinion; however, when the Congressman answers in such a fashion that his does have the credential to have a valid opinion, she dismisses that, too.
So asking for a credential is only important in so far that it can exclude others. If the other has the proper credential, that, too, is unimportant; the other must be excluded some other way.