[DrJJWMac]

I use a similar convention to G Jones ... tasks (actions) start with lower case verbs and Projects are always Capitalized Nouns (with no verbs).

That said, I would wish this issue were resolved in the context of a larger problem with the following symptoms:

* the iPhone version has no way to set a Project to auto-complete when its last task is done (as is possible on the Mac version)
* the badge counts of remaining "actions" counts a Project as an additional "task" even when that Project is to be "auto-completed" (and therefore is not really an additional task)
* Projects that are to be "auto-completed" show in lists of "actions" even when they are marked to be "auto-completed" (...)
* checking a Project completed checks all its actions, yet unchecking a Project does not uncheck all its actions regardless of the auto-complete state of the Project

Basically, the principled consequences of setting or not the auto-complete feature of a Project (as is an option on the Mac) are not fully enforced in practice through all possible user interactions with and user reviews of Projects or their underlying tasks.