qualifier free text free text
comment date
When one comment was published. A qualifier of the comment property; an ISO date string held as a literal (typed-date deferred, D5).
Comment date is free text, written for one product alone and never shared as a category.
It is a qualifier of comment — it has meaning only inside a comment statement, one per statement, never on its own. It belongs with comment to social proof — what buyers and critics say about it.
It is answered inside every comment statement, not as a standalone question on a kind.
Answered inside every comment statement — not a standalone slot on any kind.