My feature request (idea), is simple, sometimes we get here at U&L questions that can get better answers at ServerFault (for example), they have a relation to here, since these questions have a touch with U&L, but the whole scope is ServerFault related.
My idea is to create the ability to put a link to this question at ServerFault, hence the question owner can get a better answer, and everybody would be happier.
Take a look at this question for example, it has a U&L touch but in ServerFault or WebApps, this guy can get a better answer.