Its not untrue though, is it? Its really easy for such communities to really rapidly degrade.
That SO and wikipedia have both retained quality for so long, while also having strict moderators hunting a strong ideal, in areas where so many of their peers have fallen prey to the unwashed hordes, implies that it may not be so easy to discard the strategy.
It might even be necessary at such large volumes. The particulars of their activity might be maleable, but just approaching the problem (very) defensively might bot be.
People seem to think that duplicate questions are bad and something to be avoided. I think they're a terrific asset. It helps search-ability to have the same question phrased several different ways; especially when the ultimate goal is to funnel the searchers into the discussion page with the highest quality version of the question and answer. In my mind, the issue ISN'T that the mods are holding the gates against the barbarians, it is that the culture and SO itself has not given the mods the tools to convert what the "barbarians" are contributing into a valuable resource.
But as the population increases, driveby-posting becomes the norm rather than the outlier, and large swathes of newcomers can join at once, the culture cannot be taught at a rapid enough pace to survive. It either degrades, or enforces itself by means of an iron fist.
My thinking essentially stems from eternal september. Wikipedia's early success did not require heavy moderation, but once it became the predominant wiki, it's survival, I think, neccitated it.
The details may have issues, but the overarching idea, defending the culture from the unwashed masses, might still be correct.
Thats kind of the point though isnt it? The idea is that you should find the right question and answer and not the x-th repost of them.
Anyone familiar with the side know why reposts arent simply deleted instead of locked? It seems locking them only worsens the problem they aimed to combat?
Back then the reason behind locking rather than deleting was because the duplicate may be asked in a different way, using different keywords. So keeping it viewable allowed people searching for an answer to effectively have multiple entry points into finding the answer because perhaps they were googling the wrong combination of keywords to get the original to show up, but the duplicate would match.
Most of the times I end up on Stack Overflow, I arrive via Google. I usually have to check for around 5 answers before I find one that hasn't been locked as "not constructive" or for some other arbitrary reason.
Is it any wonder that people find it easier to ask their own questions? The name "help vampire" is so telling of how SO mods see themselves (as arbiters and gatekeepers of all that is good against the raging unwashed hordes) and a symptom of the problem.
Don't aspire malice / incompetence to something that may well have a root cause within SO itself.