From the standpoint of developing the highest possible Q&A database quality, is it best to post a good answer to an old fuzzy question in order to avoid duplication? Or is it better to come out with a competing question that could be viewed as a duplicate but is more tightly scoped (and better described) and therefore likely to lead to better answers?
Here's the real example I just faced:
There's an old Settlers of Catan Question that wasn't tightly worded enough to lead to great answers, IMO:
The exact mechanisms for contracts were not laid out which led to lots of comments and the top answer essentially saying that the rules variations suggested were not worth trying (without giving any playtested reasoning). I discovered when I was about to post a similar question that was more tightly scoped and explained in a format that I suspect would have lead to better answers and better learning. I didn't post this, because I figured it would be considered an exact duplicate, like this one was:
Seeing this mess, I simply posted my answer to the original question, as that seems to be the encouraged behavior on stack exchange (keep in mind I've only been using the site a month, so maybe I've got this wrong). But this answer was really to another question I had in mind (see below) that would have framed the issue in a different way.
Here is the Question that I did NOT ask:
Title: What are the best mechanics for including future trade promises without departing from Settlers rules? (Play-tested solution described, alternatives/comments requested)
Expanded: When making a trade in Settlers of Catan, there is no official rule encouraging or prohibiting making a promise (to make a certain type of trade in the future) during a current trade. Assuming the group you play with decides to allow such promises (we call them "future trades"), what mechanisms can be used to ensure this occurs smoothly?
I provide one such answer below that we've used in many games, but I'm totally open to suggestions for improvements on my answer, and/or alternative play-tested systems developed by other Catan enthusiasts.
[Note: The answer I provided to the contracts question was inspired by the answer I intended to the question I intended, but with an introductory tie-in sentence]