Optionally, it can filter out posts that were deleted (either article or comment link goes nowhere) while delayed.
https://community.tt-rss.org/t/suggestions-for-how-to-delay-a-feed/4425
- Git clone to
plugins.local/post_delay - Set delay amount in Preferences → Feeds → Plugins
- Posts are stored in the backlog no longer than
Config::CACHE_MAX_DAYS.