I thought it was strange to still have a cw question with an accepted answer option, but it appears this topic has been discussed on meta.stackoverflow.com.
I do like the suggestion of having the accepted answer for
list of X questions be a summary of the answers for that question--I hadn't thought of using an accepted answer like that.
But on SO, I also see where the original question is edited with the summary of the answers, which was the approach I would have instinctively taken.
Which approach would be best for gis.se?