If a publishing destination asks about AI use, the answer is part of the package, not part of the manuscript prose.
AI use can have different meanings
Brainstorming, proofreading assistance, generating alternative wording and generating substantial text are not the same workflow. A declaration gives the author a place to record the relevant distinction.
Publishing requirements can vary
Platforms, publishers and contests may ask different questions. B-Maker does not decide the policy for them; it keeps the information near the other submission material so it can be reviewed before sending.
Transparency is easier when recorded during the project
Months later, remembering exactly where AI was used is harder. Keeping a concise declaration with publishing material avoids reconstructing the workflow from memory.
The declaration is not a judgment
It does not say AI use is good or bad. It makes one potentially relevant fact explicit and reviewable.