Looking around here, I haven't come across one asking about migrating questions to unix.SE. However, there is currently a discussion on that site's meta, regarding the issue. In fact, the site will be launched any day now, and I want to start a discussion on migrating questions that are very generic, the kind where there isn't a single mention of Ubuntu, like this one. I say this because unix.SE audience could benefit from this influx, while Ubuntu users have only one more site to learn about.
Note that the question is not about what questions should be asked here, but about should non-Ubuntu-specific questions be migrated to unix.SE?