"In fact, it's possible that people with certain psychological traits self-select for Wikipedia editorship."
I'd say this is more often the case than not. The few times I've interacted with wikipedia editors I've found our differences to revolve around differences in opinion rather than quantifiable standards. Of course, the opinion of the wiki-nazi carries the day. I agree wikipedia would be better served if it focused its editing on clear cases of unacceptability ("obviously fraudulent, marketing-oriented, illegal, or obscene according to a widely accepted definition of obscenity") plus in improving the language and grammar of the contributions.
I'd say this is more often the case than not. The few times I've interacted with wikipedia editors I've found our differences to revolve around differences in opinion rather than quantifiable standards. Of course, the opinion of the wiki-nazi carries the day. I agree wikipedia would be better served if it focused its editing on clear cases of unacceptability ("obviously fraudulent, marketing-oriented, illegal, or obscene according to a widely accepted definition of obscenity") plus in improving the language and grammar of the contributions.