:::Indeed, I was going to support based on these numbers and changed my mind as I was developing my reasoning.  I can change my mind again.  The key for me is what is the expectation that anyone would search for any of these topics with just the search string, "puffs"? I, for one, don't ever recall anyone ever referring to the cereals or the cheese-based food-like substances as (just) "puffs" (plural form).  Can you find any sources that do that for any of these uses?   Even if a chromosome puff is sometimes referred to as just a puff, that doesn't put much of claim on puffs (plural).