As a source of general information, not just "Manifold Markets has a market with over 2000 traders [citation: link to manifold]".

Must be clearly accepted as a general Wikipedia policy or norm, not just one rogue editor adding one in and nobody caring enough to contest it.

• Update 2025-03-11 (PST) (AI summary of creator comment): Additional Clarification on Accepted Sources:

  • Accepted as a source means the prediction market must be recognized under general Wikipedia policy as a reliable source, not merely cited once.

  • The citation must meet a higher threshold than one-off mentions (for example, being integrated into multiple articles or discussed by multiple experienced editors).

  • A single citation (or self-citation) does not suffice to demonstrate that a prediction market is generally accepted as a source.