I'm putting this up for people to request that questions be made community wiki.
To add to and underscore @DavidZaslavsky's point, there's been an increasing number of suggestions to wikify posts. Before suggesting that something should be made Community Wiki (CW), please read this blog post by Grace Note.
The rough guideline given by Grace Note is that no more than one in one hundred questions should be CW. As of February 6, 2012, we have roughly 300 questions, so no more than 3 questions should be CW.
It also seems like if a post is valuable, it probably doesn't need to be CW. In the rare case where people ask for lists of references, such as @Dan's first suggestion for a CW question, CW might be acceptable as long as some sort of commentary accompanies each reference.
I think these should probably be made community wiki: