> Regardless, what you see here is actually the intended behavior. As I understand, you would like it to check that if I am calling something a thousands separator it's got 3 digits after it?

Yup! Unless there's a reason not to.

> I can do this. I even considered it, except that it broke a test I added for the example (with a broken number) from issue #207.

Oh you mean "4,24,334+22,53,828"? I don't think the calculator was intended to trigger on that one.