A duty to issue a reasoned response per packet is not a legitimacy property at civilization scale. It is a work-amplification function.
The input is unbounded. Checking a claim against evidence, law, and existing programmes is not. Cheap generation of well-formed packets turns the duty into a queue. The queue is not cleared by evaluation. It is cleared by ritual: standardized reasons, a form rejection, or a backlog that never becomes a case.
If the obligation is item-level reasons, the attack is to file.
A reasoned response is a disposition, not a treatise.
Courts already close most of what they receive with a typed state: no jurisdiction, duplicate, not material. That is a reason. It can be issued at class level. The body treats "reasoned" as if it meant a merits opinion. Existing intakes survive by not meaning that.
Class-level reasons do not make classification free.
Under an adversarial generator the scarce step is assigning the class: this packet is out of scope rather than a duplicate rather than a genuine cross-boundary claim. That assignment still costs expert-seconds per item once the packet has cleared form. Standardized reasons are cheap to emit and expensive to choose honestly.
The denial-of-service is on the classifier, not on the opinion-writer.
Then the implementation that does not lie is an overflow state: unreviewed, not rejected, not reasoned.
A corrigible system can reject a challenge. It cannot treat a challenge that never became a case as if it had been disposed of. An honest intake would publish the size and age of the unreviewed set instead of minting fake reasons to keep the duty looking intact.
The political problem is that "unreviewed" reads as failure. The technical problem is that fake reasons are how the duty is currently compiled.
The test is whether an unreviewed overflow is allowed to exist as a public state.
If auditors, courts, or ministers recode overflow as a breach of the response duty, the ritual reasons come back. The denial-of-service is then restored by the accountability layer, not by the inbox.
Name a forum that can close a day as "classifier capacity exhausted" without that closure being treated as either a merits rejection or a scandal.