I’m banging my head against this again right now. The really maddening thing is how our information is balkanized. This idea of each question being its own scope is good and I want to see it work, but the damage caused by having no cross-referencing is severe.
I feel like this needs to be very high priority, as it affects both contributors (frustrating duplication) and consumers (potentially useful info buried in corners). And while I think Stuart’s got the right idea for how to handle edit scoping, it also needs to be obvious that the option itself exists independent of any given question. So just as the question summary list allows you to browse to individual option pages, there should be a way for the user to browse other questions where that option is presented, and see pros and cons in that scope. I’d even go so far as to propose a question comparison view for options, because that seems like the only sane way to allow users to copy things between them. (Perhaps this could be worked into the option’s main Edit page, since add-an-option is a clone of that currently, and if we’re going to allow copying in pros/cons at option “creation” it’ll have to go there anyway.)