We talked about minimizing the overlap between traveling and expatriating, but the differing opinions on how to do so seemed to widen it (by the fact that they’re so different).
At least one person offered some of the reasons cross posting is undesirable.
Is it acceptable to post the question on one site, and on the other put only the title (make sure it’s the actual question) with a body like “This question is a duplicate of (URI). Please answer there.”
Then ask a moderator to lock it.
My rationale is that people in group A may be interested in a borderline question but not be following group B. (Might have a side-effect of getting more people in group B!)