All reports of not-using-po-debconf for the archive. The extended description of this tag is:

This package seems to be using debconf templates, but it does not use po-debconf to make translations possible (debian/po doesn't exist). Debian Policy requires that all packages using debconf use a gettext-based translation system. If this package uses one other than po-debconf, please report this as a lintian bug along with how to detect that system.

Refer to Debian Policy Manual section 3.9.1 (Prompting in maintainer scripts) for details.

Severity: serious, Certainty: certain

Check: po-debconf, Type: source

This tag has not been emitted in any package tested by Lintian.