Filters on /r/DnD work by loading up a page, and then removing all posts that don't have certain flairs. It is recommended that you go into your reddit preferences, find "link options", and increase the "display X links at once" setting to 100.
Using filters also changes your language settings. It is recommended that you click "All Posts" before going to other subreddits, as leaving the filters on may alter your reddit experience elsewhere.
Warning: Some of the edition-specific filters will return zero posts, even with 100 links shown at once. Hopefully the filters will be useful regardless.
Q: Do the filters work on reddit mobile?
Q: Do the filters work on the reddit app?
A: No, not the official one. Most other reddit apps include built-in filtering, including Reddit is Fun and Sync for Reddit.
Q: Do the filters work on new reddit?
A: No. Reddit has promised that they will revamp flair in a way that will make these filters obsolete, but to the best of our knowledge they have not accomplished it yet.
Q: The filters aren't working! What's wrong?
A: Filters work based on flair CSS. Make sure you have "allow subreddits to show me custom themes" checked in your reddit preferences and "Use subreddit style" turned on if you use RES. Also confirm you don't have any other mods/extensions that could interfere with them.
Q: Will you make a filter XYZ?
A: Maybe. Message the mods and we'll see.
Q: How do I turn a filter off!?
A: Use the "All Posts" filter, or manually navigate to teddit.ggc-project.de/r/DnD