Growing number of posts on SO are related to installation of IDEs, libraries and programming tools on Ubuntu. Some of them might be a fit for Serverfault but they are usually far too easy to be valuable for professional sysadmins Q&A site.

A lot of them would fit nicely into Ask Ubuntu as they are usually questions about installing Oracle Java or finding a PPA with a newer version of some application.

On Serverfault meta they discuss leaving the spot on flagging for migration of a question (off-topic -> belongs on {sitename}). How about taking their (Serverfault's) place in this migration dialog?