Somebody wrote:
Anyway, over at Wikipedia:Categories for Deletion, today folks are proposing making a clean demarck between user space categories and "encyclopedic" categories. Seems reasonable to me.
One alternative, at least in theory, could be to introduce globally unique login names and keep all user pages and "wikiproject" portals on meta, not only for all languages of Wikipedia, but for all projects. Then categories such as "users who speak Danish" could reside on meta, once and for all. Wikiprojects on meta could be designed to address multiple languages and multiple projects, synchronizing Wikipedia with Wikisource and Wiktionary.
While this change might be "too big" and "too late" to be practical, it can be introduced on an individual, voluntary basis. Those who like the idea, can move the content of their own various user pages over to meta, keeping just a short reference on each local language. Those who disagree, don't have to change anything, but can continue as if nothing happened.