[Brian]

Well, OmniFocus was designed to handle situations like this with the start date field - which is really a "don't bother me about this until" date.

In both the Stuck and Pending cases, my suggestion would be to a start date off in the future for the items. That gets them off your plate until that point in time. (You can use the note field if you want to record why the item has been deferred.)

I know that wasn't your preferred solution, of course, but I hope it's still at least somewhat helpful. :-)