For users who have more than one workspace, quick adding an item to the Personal List adds it to the last used workspace. This means quick adding tasks either get split across multiple workspaces or can't be quick-added (not a true inbox style feature).

Personal Lists should (optionally) be tied to a user ID rather than a Workspace so that personal tasks are consistent. This would allow upgrading them a shared task in a particular workspace list rather than the workspace that was last active when the task was created.