First, you are responding to a point the original poster didn't make. He didn't claim that he wanted to shut discussion down to "officially credentialed experts". He claimed that people involved were "unqualified to discuss them in any detail" ie. a polite (perhaps qualified and tentative) way of saying "they don't know what they are talking about and are just making stuff up".
Second, much of the truly offensive stuff I've seen on HN has been phrased in "qualified" and "tentative" fashion.
Sometimes the ideas expressed here are, well, shit, and putting a gloss of civility on it doesn't change that it's a shitty idea, it just adds passive voice and some extra syllables. One is reminded of the myriad of polite and civil arguments advanced in the drawing rooms of the nicest people in favour of slavery or against voting rights.
Second, much of the truly offensive stuff I've seen on HN has been phrased in "qualified" and "tentative" fashion.
Sometimes the ideas expressed here are, well, shit, and putting a gloss of civility on it doesn't change that it's a shitty idea, it just adds passive voice and some extra syllables. One is reminded of the myriad of polite and civil arguments advanced in the drawing rooms of the nicest people in favour of slavery or against voting rights.