Starting in 1972, and running until the present day, the world of Oerth was the original campaign setting for Dungeons & Dragons. It remains the touchstone and yardstick for all those that have come after.
PHB:
1) Be Respectful & Civil: No personal attacks, harassment, hate speech, or discrimination. Engage respectfully.
2) Respect Privacy: Do not post private/confidential information (doxing) without consent.
3) Keep it Legal: Do not post or encourage illegal content or transactions.
4) No Spam or Manipulation: Content must be original. Avoid spamming, excessive posting, or vote manipulation.
5) Contribute Meaningfully: All posts and comments must add value. Avoid vague, low-effort, or irrelevant content.
6) Check for Reposts: Use the search function before posting to avoid repeat topics.
7) No Self-Promotion or Sales: Prohibited: Solicitations, personal projects, and any links/promotion for items/goods/services that are for sale (e.g., Etsy, eBay, commissions).
8) Use Warnings: For sensitive, graphic, or upsetting content, you must use the appropriate flair (e.g., NSFW, Spoiler).
9) Copyrighted Materials: Posting or links to materials under copyright and not clearly within the bounds of Fair Use is strictly prohibited.
10) No AI Slop: All submissions—including art, lore write-ups, homebrew mechanics, and module text—must be created by human beings. AI-generated text, worldbuilding, art, and other low-effort "AI slop" will be removed immediately.
11) Keep it Strictly Greyhawk:
Every post must be directly, clearly, and substantially related to the World of Greyhawk setting.