I'm all for some general mechanism that discourages questions that lead to never ending discussions, but ten answers is not a good indicator of that type of question.
Consider my question: How do I set up SSH so I don't have to type my password?How do I set up SSH so I don't have to type my password?
It is a specific question with a specific answer that I think is the type of question that should be encouraged. Yet, it is community-wiki because of wrong or incomplete answers.