Canonical keys only (ip_geo_display defaults to all four, aksrt_user_addr / aksrt_comment_addr only). Self-view still resolves current IP on read.
Extract shared comment helpers (content/item/form/geo/actions), port GIF [g=] smilies + FixedInput/moveForm UX, wire close_comments/city/quick settings, REST comment get, and align product review chrome with zibll.