The system (and edition, if relevant) must be explicitly stated by the asker
The simplest expression of the current policy is:
The question asker must explicitly state the game system (and edition, for games with multiple editions) that they’re asking about.
Not all questions require a system to be specified in order to be clear. Some categories of questions, including system-agnostic questions, questions about game design and similar statistical topics, or some questions about social issues, are perfectly clear without specifying a system. However, if the question asks about game rules, content, or other facets of a game, we need the system to be clear so we know what the relevant game rules, content, or other facets are.
For more information on how and when to specify the system, see this Q&A: Why do I need to specify my game system, and how do I best do it?
What counts as “explicitly”?
The user asking the question can explicitly indicate the game system/edition by doing at least one of the following:
- The asker adds the appropriate system tag for the game system and edition to their question.
- The asker states the game system and edition (if required) by name in the body (or title) of their post.
- The asker confirms the game system and edition (if required) in the comments of the post.
- The asker links system specific rules, toolsets or content that uniquely identifies system and edition (if required). I.e. D&D Beyond or other similar tools for other systems. (D&D Beyond Meta, Generalising the Policy)
- If a question links or cites content that conflicts with other links/citations or the existing tags on the question. This should be considered unclear.
- The term '5e' plus supporting contextual information is considered, by meta consensus, explicit declaration that the question is about D&D 5th edition. As confirmed in this meta: Revisit: Is "5e" a clear enough statement of game system by a question asker to determine that the question is about D&D 5e?
What to do if another user edits a question without the asker stating the system?
If a question fails to explicitly identify the system (and edition if required), it should be closed until the asker clarifies. If instead another user edits the question without confirmation from the asker, this is considered a “guess”.
Edits that guess the system should be reverted to prevent the question being preemptively reopened and to prevent answers addressing the incorrect system/edition.