Though Fail_FandomAnon is about fails and fandom, there are certain threads that pop up all the time, usually at least once a post.

• Things You Wouldn't Admit Unanon
• Unpopular Opinions
• Fandom/Non-fandom/Random Venting
• Foreign-language threads, especially by the Scandanonnies
• Things You'd Like to Say to Your F-List/to an F-Lister (a/k/a “Dear F-Lister” or “Dear Fandom Friend”)
• Things Making You Sad/Happy/Annoyed Right Now
• Books threads
• Cooking/food threads
• Makeup/beauty threads
• Sports threads
• Politics and Current Events threads (including UK Politics, which is forbidden outside that thread; US Politics, which is sometimes outright banished to its own post; and Moon Politics, which is a parody of all of the above)
• Various types of rec threads, especially Fic Recs (see also Academic)
• EFW threads, although some nonnies detest them
• “Ask Me Anything”
• Fic Research/Unfuck My Plot threads
• Tumblr and Twitter wank threads (sometimes merged with Reddit Rubbernecking to form a consolidated Social Media thread)
• Discussion threads for various genres and canons (anime, comics, movies, etc.)
• WIPs/“3-5 Lines (of something you've written)”/100 Words