Should we prefer the use of the term "head" over "foam"? I think "head" is technically more correct. If so, what should our course of action be with the foam tag?
One concern is that casually-interested askers might be confused or unaware of the term "head" and thus make mistakes with their tagging. This is easily rectifiable, but adds a level of complexity to first-time users; especially if they're looking for the foam tag and can't find it.