This is not necessarily an error, but it is confusing to users.
When hosting multiple journals, the user home displays all user roles in every journal.
Each journal may have its own layout, but the user home always changes back to the default (portal/host view).
If there is a different CSS for each hosted journal, especially sideblocks, navigation items, and other customizations, the user home should reflect the current journal visited.
The main user home should only be displayed if the user so desires, maybe as a profile configuration option.
Then, when visiting a journal and clicking the user home, the page displayed would be the journal's page, with a visible link to access all journals.
Also, it would be interesting to add to OxS a greater separation between the "public" face and the "administration" or "content management" face, which would allow the journal to have a very different look on the outside as well as on the inside.
Another CMS-like feature would be to add a template changer to the "content management/administration" face, so the user could choose how to organize the tools available, instead of having someone else decide.