Guinness is hogwash, sure, and generally I would assume that anywhere boasting a large number of flavors was just padding the numbers with permutations as you mention. But it does sound like the options at the place in question are actual individually authored recipes, and if so I would give credit to that.
I spent the last week hospitalised with gallstone car-crash syndrome [insert html sympathy field] and now have to not eat anything with fat in it for a while. So of course I am immediately unable to recognize anything as food which doesn’t contain at least 50% fat, which is making me think deeply about this sort of thing.
