Thanks for elaborating, Steven, but I think the point is not about
drafting articles in the user namespace _alongside_ the draft
namespace. We would probably decline to introduce a draft namespace in
the first place in dewiki. I hope very much that we won't have another
conflict as we had with the visual editor earlier this year. Wikipedia
is an encyclopedia, not a place for endless experiments. It is not the
WMF to decide on the policy in language versions. This is up to the
community.