We have an exceptionally tedious situation over on English Language and Usage, where a suspended user keeps posting questions using different identities. Apparently an IP ban is impractical in this case.
When another of these "sockpuppets" is identified, standard procedure is that the question is deleted (unless it has upvoted answers), and the new account is merged into the suspended one.
This isn't entirely satisfactory - some deleted questions are actually wanted (but can't be undeleted), and some of the ones that aren't deleted should be.
Why can't questions currently being deleted in this way to be assigned instead to the Community user?