The result of the debate was , in brief, to close the noticeboard.
The ensuing discussion is strongly leaning against the status quo, and most of the differences between the keep and delete voters have to do with what to do with the page itself after other changes have been made. From the binary keep/delete perspective, this debate is a "keep," as Sjakkalle's point for not deleting the page is the most convincing, and was not successfully contested by anyone. In other words, the page itself and its archives cannot be deleted per se because that would cause problems when referencing existing discussions.
On the other hand, the debate was not purely a keep/delete discussion, but it also had a dimension about what other changes must be done to the page and its concept. The strongest consensus in this portion of the discussion (albeit not unanimous), and the one I'm closing with, is merge role back into Wikipedia:Administrators' noticeboard/Incidents. That also means, as a result, that I'll tag CSN as {{historical}}, which was implicitly expressed in many "merge" opinions. However, I strongly recommend finding a technical way to maintain CSN's original purpose of documenting bans created by the community in a place separate from AN/I's overwhelming archives. MessedRocker's idea has merit, as well as Jpgordon's, so they should remain under discussion, albeit in a different place. Any implementation of those ideas would not be covered under CSD G4, under my interpretation of the debate, and would actually be very encouraged. (By the way, someone asked what would happen with WP:CEM if the noticeboard is removed; the answer to that is not a thing. CSN's role in that proposed process can be replaced by another page's without incident.)
So, for those who don't want to read the essay I wrote above, here's the CliffsNotes version of my closure: keep, but merge role and functionality back into AN/I, at least temporarily, tag as historical, and maintain the current archives. Titoxd(?!? - cool stuff) 03:04, 11 October 2007 (UTC)