- https://www.greaterwrong.com/posts/sEEvKfrL5uPicK3rT/separate-comments-feeds-for-different-post-listings-views
- and, by extension, "comments on post X", "comments on all posts by author X", "all of author X's posts on the Alignment Forum, and also all comments on those posts", etc.
- Tags
- PmWiki page list parameters / WebFeeds
- search queries (incl. by fulltext)
- canonical-order parameters, then cache (hashing, probably)
- dynamic RSS feeds is just "RSS feed of the query results"
- pagelists, search results, and RSS feeds are all one thing
