E.9:0.1 - What goes wrong if missed

• Core text changes without one explicit rationale account, so later readers cannot recover which alternatives were rejected or which exclusions were intentional
• coordinated multi-pattern amendments drift apart because the temporary selected-answer account survives only in patches, handoffs, or reviewer memory
• future repairs overfit to local wording and silently lose Pillar, taxonomy-lens, impact-graph, practical-use, or pattern-placement discipline