[brianogilvie]

Do you have a project whose name includes "Project 3"? If not, OmniFocus will not create the project for you. If the text after the > or :: matches a current project, the action will indeed be placed within that project.

And Quick Entry only functions when OmniFocus is open. Ken has explained that a separate Quick Entry faceless application would consume nearly as many system resources as the complete OmniFocus application, so it doesn't make sense to run Quick Entry separately. If you find yourself wishing for Quick Entry when OF is not open, you could make OF a startup application.