A while back I had used some other GTD-style app for managing tasks/projects/contexts. It was set up where you “dump” into the inbox, then once you assigned it to a context, it disappeared from the inbox (because it shifted to the context instead). I guess ultimately you want the inbox empty because tasks are assigned to contexts and/or projects.
Doesn’t appear that works in OmniFocus. Am I right? Is that something I am simply missing, or can it be customized that way?