I actually agree that braindead can be a valid context. Your brain is a tool and sometimes it's not the sharpest so having a list of things that can be done then makes sense. I'd also think that for an item to go on the list it has to be a do anywhere item just so you don't have a mix of things that can't be done in that state but that's more a matter of how you assign the context to a particular item.
For me well over half the projects I have are recurring ones. Some have to be done daily, some weekly, some once a quarter, some twice a year and some once a year or even once every decade or longer. Putting all those types of things in a reference list just adds a layer of complexity and makes it more likely that I will never get them done on time. I need to have the actions listed and available in the contexts in which they happen. Just because I will have to do it again does not mean it's not able to be checked off now for this instance. In fact the win of checking them off is well worth the effort to put the recurring tasks into my projects int eh first place.
Today we just finished one, Clean the chicken barn. We do this once a year, there are several actions that have to happen (call the person who trades the chicken manure for veges, schedule the time and day to do it together, buy enough shavings to re-bed the chicken condos and actually clean them out) I crunched through the various actions and now I finished and checked off the final one. But I already see that I now have a pending project (equivalent of a tickler) for it to start again next fall.
Oogie McGuire - Mac, iPhone & Omnifocus
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Paonia, CO USA