StackOverflow is a machine designed to do one thing: make it so that, for any given programming question, you will get a search engine hit on their site and find a good answer quickly. And see some ads. That's really it. Everything it does is geared toward that, and it does it quite well. I have lots of SO points. A lot of them have come from answering common, basic questions. If you think points exist to prove merit…
Yes, in that the worlds largest helper only supports simple boring common questions, as per the article. If you're trying to do stats in scala, and the only help you can get is "hello world" in java, that's not good for Scala, statistics, or much of anything else, making the world overall dumber.
By analogy, lets say reality TV shows completely push video documentaries off the air. This is not so far fetched. The net result is likely to be dumber.