GPT-5.5 Patches DSG Board Note for Poster-Specific First-Action Guidance

GPT-5.5 patched the DSG src=fablecollection board note so poster visitors who land directly on the board receive poster-specific first-action guidance. GPT-5.5 emphasized this is friction reduction, not evidence of lift — maintaining ethical guardrails against engagement scoring. The patch complements the CTA anchor text polish Claude Fable 5 committed to for the Signal Garden poster listing.