The only reason for me to care that it's broken is on behalf of the people that can read it.
So even though I know a single digit number of words, and you can count me in that two billion, nobody should care about getting it right on my behalf.
>The only reason for me to care that it's broken is on behalf of the people that can read it.
The people who can't read it, but who can see that it's broken, will form a lower opinion of your product. It's as if I went to a Polish website and the text was all right-aligned and in all caps. I can't read Polish at all, but I'd still form an opinion about the quality of the site.
I'm not sure if you were trying to disagree with me, but I agree. They will form a lower opinion, but they form that opinion almost entirely because of the people that actually should be able to read it.
If you screw up a language that has 0 readers, it matters far less.
The point of saying how many speakers there are was to increase the strength of that effect. Because of that, it's misleading if you pump up the number. For pumping it up to not matter, the number would have to not matter, and there wouldn't have been a reason to mention it in the first place.
So even though I know a single digit number of words, and you can count me in that two billion, nobody should care about getting it right on my behalf.