As in individual games rather than the game system itself.
A recent question, What is this story I recall about an extremely long ever-changing character backstory?, had the following comment discussion (that really should have been a meta discussion instead guys):
10 I'm voting to close this question as off-topic because RPG.SE is not a "find this random anecdote somewhere on the Internet" service. – Oblivious Sage 23 hours ago
@KorvinStarmast If someone posts a sufficient description of the book, or better yet a picture of the cover, then we can identify that book with 100% certainty. There are countless RPG anecdotes on the Internet, though, so there can't ever be a "best" answer. Also, an RPG book is an RPG, whereas an anecdote merely happens to involve RPGs. What's next, a question along the lines of, "I think I saw a movie one time, it was a sci-fi movie, and there was this one scene where some random guys were playing D&D or something then got attacked by a monster. What movie was that?" – Oblivious Sage 22 hours ago
1 @ObliviousSage If that Comment ended instead with What adventure were the random guys playing? would that be okay? – Hey I Can Chan 22 hours ago
@HeyICanChan Assuming it contained the actual name of the movie in question then yes. Because it's a question about an RPG that happens to involve an anecdote, rather than a question about an anecdote that happens to involve an RPG. – Oblivious Sage 22 hours ago
@HeyICanChan To put it another way, "Identify/locate X" is only on-topic if X is itself an RPG; including RPGs in your description of X to try to help us identify it does not make the question about RPGs. – Oblivious Sage 22 hours ago
19 @ObliviousSage Huh. I dunno. That sentiment seems rather… elitist? Exclusionary? Although still developing, RPG culture already has important anecdotes that serve as touchstones for concepts, issues, and problems within the community, and we — as part of that culture — should expect and encourage new ones to develop. They have value. Especially if a user's new to the scene it seems unfair — perhaps even unkind — to deny a user who's interested the Head of Vecna or the Dread Gazebo just because such stories are about an individual's campaign rather than about an RPG generally. – Hey I Can Chan 22 hours ago
1 @HeyICanChan Users should be gently encouraged to share their anecdotes, and questions about anecdotes, in chat. The site itself should be reserved for questions that more definitively on-topic. If that approach occasionally excludes questions that have value then that's OK. RPG.SE does not exist to meet every need the RPG community might have; that's why we direct people to forums when they have questions that would work better in that format. – Oblivious Sage 22 hours ago
1 Speaking of, SeanFromIT, feel free to hop into Role-playing Games Chat, where we would be delighted to swap stories about hilarious, amazing, or otherwise interesting things that happened while playing RPGs (even if they only vaguely involve RPGs!). – Oblivious Sage 22 hours ago
8 @ObliviousSage I am comfortable with saying that I think this question is definitively on-topic and that asking about important or potentially important gaming anecdotes here rather than in chat (where an answer may not be forthcoming or where a user doesn't feel entirely comfortable or welcome) or on a forum (where wading through guesswork is the norm) is perfectly appropriate. I totally respect your right to disagree with my opinion, though. – Hey I Can Chan 22 hours ago
15 The question is answerable, and has only one right answer. Further, it is almost certainly already answered correctly by guildsbounty. Old Man Henderson is as much an RPG touchstone as Tuckers Kobolds, and questions about them would unquestionably be on topic. (My opinion, but strongly held) – fectin 20 hours ago
3 Thanks for not deleting! First post in this StackExchange and you guys nailed it. I asked knowing it might be flagged, after spending an unacceptable amount of time searching and not finding it among decades of D&D anecdotes on the Internet :-) – SeanFromIT 16 hours ago
...and then a bunch more comments from people who should have upvoted another comment instead of reposting what is substantively the same point as a previous comment.
In any case, this is something we should, as a community, decide. Are questions about individual groups' home campaigns on topic here? What about specifically questions about identifying a particular group's campaign? Many campaigns were not documented in any form and do not have any wider significance past their participants, but then again many campaigns are documented and many campaigns, documented or not, have a wider significance with respect to RPGing as a whole or even society at large.
What do we want our policy on questions asking about home campaigns to be, and more specifically what should be done with questions about identifying a home campaign or an aspect of a home campaign?