The "impedance mismatch" is not a magical phrase. It simply refers to the mixing of orthogonal concepts: like trying to fit square pegs into round holes. Sure, you can do it. But do you really want to? You have to admit that the (very old) article/blog who made that term famous saw the issue coming and was right about the current (very sad) state of affair we're in. It was "The vietnam war of software development" or something like that. The problem when trying to fit square pegs into round holes is that you end up --to use another term that's going to become "magical" to you-- with a "complected" system. The "elephant in the room" if you wish. You probably want to watch "Simple made easy" by Rich Hickey, the author of Clojure.
HN user
martmarc
Wait until said author or the author of another tool / API enters in an argument with one of the elected moderator and gets banned: you're going to be "unsold". This is precisely what this discussion is about: it's about obviously knowledgeable SO users that are getting more and more pissed off by the behavior of these "close-trigger-happy" moderators. And this is relatively new: it wasn't anywhere near as bad two years ago on SO. The one thing that prompted me to leave is twice I spend time answering a question only to see the whole thread getting deleted: this is a waste of my time (I don't care about the b*llshit reason invoked by those overzealous mod to close the question: I care about my time spent helping people being lost). I'm not bringing anything anymore to a "community" that is so prone on wasting their user's time.
I fully disagree when you say that if you want things to change you have to go to discuss this on SE. The entire point is that SE is not just "SE policies" and "SE moderators": SE is first and foremost users and these users have their right to read criticism about SE on HN / reddit / blogs / etc. And the day a topic shall pop-up on meta saying that some introspection from SE may be needed, the more users have read well-articulated blogs entries and great comments explaining what they find very wrong on SE, the more likely they are to upvote these suggestions on meta. You're not an island and you to realize your most important users have a very vocal voice outside of SE and that this voice does have an influence.