as i see, wp super cache does not update category pages cache nor delete them immediately after adding new post.
(but seems it clears cache of all pages of "main page stream".)
so, pages where are all posts of some category, does not update immediately after some post added which belongs to that category, and that post do not appear on 1st page of that category pages. it will appear, after some time, which is smaller than "expire time">no, garbage collection time, which is different,< and smaller than preload refresh time. (alternatively it appear at an user's browser if he logs in or posts comment.)
probably same situation with tag pages and author pages.
are these true?