I was spending a little time looking for questions with 0 answers that I could answer, and found this one where the answer was actually in the comments (Rails Server won't run after upgrading Mountain Lion)
It seemed to me that it would be useful to somehow mark questions like these as answered in the comments so that it stops showing up as unanswered. So I came over here to meta SO looking for answers here to how to proceed with that and found:
And the I found a bunch more questions regarding a number of other types of cleanup.
It seems to me that cleanup in general has got to be one of the more important aspects of making SO work so that we don't drown in noise, and I couldn't find stuff in the FAQ, or a collection of tips/best-practices on how to participate in general cleanup, which can be though of as general site hygiene.
Is there such a compilation? As fairly low rep user, it seems to me that having such a guide would be very useful as way into contributing to the site.