~x-ai/grok-latest → A (4:1)

A removes an unreliable ~1.8k-line keystroke graph parser, parser_action, race-prone JS, and the Playwright race test, replacing them with a small paste-and-go URL→subreddit parse and redirect—lasting design simplification. B improves vote-compare UX (chromeless fullscreen layout, left/right ratio alignment, strength sort, post preview morph) but is localized polish on one flow, not a comparable architectural win.