Click on "Request a review", and follow the advice of the page you are taken to.
Run through the Short i18n review checklist.
Identifies various aspects of a spec that may need internationalization review, and points to more a detailed checklist for relevant items.
(b) is applied to something we've noticed and want to track, but the Spec WG doesn't need us to confirm agreement with the resolution.
We may, however, convert a tracked issue to a comment at some point in time.