Subreddit rules check
r/opendata
Can you promote here?
The written rules take no clear position, which is NOT permission: unclear communities enforce norms through removals instead of rulebooks. Sort by top, study which builder posts survived and how they were framed, and when in doubt ask the mods.
From the rules · Posts are archived after 6 months (no votes/comments after that).
Links
The rules clearly allow links. A plain-text mention still often outperforms a URL from a young account.
What this community rewards
Dominant post formats: data, question, discussion
Title = short, explicit: “Dataset: [subject] — [format/coverage] — [link]” or “Request: dataset about [topic]”. Use third‑person/neutral when sharing datasets, first‑person when requesting help. Keep body very short (1–3 short paragraphs) with a one‑line summary, key metadata (columns, update frequency, license) and a direct link to the data. Tone: technical and factual. Upvoted: useful, well‑described machine‑readable datasets and concrete requests; removed/ignored: vague posts, dead links or overt sales language/self‑promotion.
Arriving in the local format matters: cross-posting the same text everywhere reads as tourist instantly. The wider method is in the Reddit playbook.
Classified mechanically from the community's published rules and recent top posts, last checked July 2026. Rules change and moderators have the final say: verify at r/opendata's rules page before posting anything that matters.
Thread Otter checks this before every send
These profiles power the product: promo-banned communities never receive a promotional draft, drafts arrive in the local format, and a fact-check gate plus human pacing protect the account doing the talking.