Wikipedia is more comprehensive now than in 2008, but I speculate that its average article quality might be lower, because of (1) competent editors being spread more thinly, and (2) the gradual entrenchment of a hierarchy of Wikipedia bureaucrats who compensate for a lack of expertise with pedantry and rules lawyering.
(I may be being unfair here? I'm going by faint memories of articles I've read, and my mental stereotype of Wikipedia, which I haven't edited regularly in years.)
Average article quality is almost certainly going down, but the main driving force is probably mass-creation of stub articles about villages in Eastern Europe, plant genera, etc. Of course, editors are probably spread mpre thinly even among important topics as well. A lot of people seem to place the blame for any and all of Wikipedia's problems on bureaucracy, but as a regular editor such criticisms often seem foreign, like they're talking about a totally different website. True, there's a lot of formalities, but they're mostly invisible, and a reasonably ...
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