I rather think all of this misses the point. Vandalism to our most popular articles is not really a problem: new users/anons editing those articles isn't a problem either. Reverts are easy.
Something we should really think about, though, is semi-protecting our quality articles; GAs and/or FAs. The current state of affairs, where quality articles deteriorate very rapidly if no one is looking after them due to people introducing questionable junk that isn't out-and-out vandalism, is not acceptable. Semi-protection would help here, because those responsible for introducing this kind of material - often trivia - are usually anons.
Moreschi
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