"Wikipedia has changed from “the encyclopedia that anyone can edit” to “the encyclopedia that anyone who understands the norms, socializes him or herself, dodges the impersonal wall of semi-automated rejection and still wants to voluntarily contribute his or her time and energy can edit”
The former turned out to be a monumentally bad idea, creating a space filled with weird conspiracy editors, tendentious axe-grinding, automated submission systems, random drive-by vandalism, massive amount of astroturfing, and general trolling. Hence, the latter.
"The urge to destroy is also a creative urge." -- Bakunin [ed. note - I would say: The urge to destroy may sometimes be a creative urge.]