Replace sync setState-in-effect with keyed remount and render-derived patterns in app, error-display, topbar-edit-modal, catalog-filters; use useCurrentTime() instead of Date.now() in hot paths; fix conditional hooks, passive scroll listeners, lodash path imports.
Replaced per-reply useReplies subscriptions in backlink rendering with a precomputed directRepliesByParentCid map from thread-level filteredReplies. Also optimized quote link rendering in comment-content with scoped store subscription, reduced edit menu state churn, and improved DOM lookups with memoization to keep all backlink rendering data-local and eliminate repeated backend-state-driven reference churn during board scroll.
Replaced `import _ from 'lodash'` with specific named imports (`capitalize`, `lowerCase`, `debounce`, `startCase`) across 18 files. This reduces bundle size and improves tree-shaking efficiency.
Removed all fake posts for subplebbit description and rules, including dedicated routes, components, and all related logic across the codebase. Board admins can now pin regular posts if they want to provide a description.
- delete the anon mode hook/store and stop wiring publish flows through alternate signers
- strip the settings UI, avatar warning, reply indicators, and FAQ text that referenced the toggle
- drop the anon mode translation keys via scripts/update-translations.js
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