I'm pretty sure that denise has already acknowledged that communities (on LJ) where only one person (the maintainer/owner) ever posts are a special case, and there is a vague intention to add importing these to a personal journal on DW as a feature in the future, but it may take a while.
However, your phrasing implies that you're talking about the other way around, which I don't know anything about, though I guess that if you mentioned it on dw_suggestions they'd probably agree that it sounds reasonable.
Importing one-person communities
However, your phrasing implies that you're talking about the other way around, which I don't know anything about, though I guess that if you mentioned it on
Would a client be able to handle this?