I wonder, are issues like these easier to manage with sentences structured like: “Number of foos scanned: 1”, or “Number of foo/bar scanned: 3/10”? I know it at least makes the plural issue go away for English (as both 1/2 work with a colon).
And, people have become used to it, so for younger people it seems perfectly normal; and everybody who hates it either doesn't use computers, or will die soon enough.
Since it does not actually hasten their death (or deaths -- a fine point), it is the clear winner.
I don't see what logic connects statements before, and after "therefore", sorry.