User:SOTO/Forum Archive/Inclusion debates/@comment-1678571-20200811174238/@comment-45692830-20200811180854

I believe the precedent is this conversation.

czechout wrote:
Not sure what your alternative would be. You'd actually require the admin staff of this wiki to look at every single book ever made and decide on a case-by-case basis? That's completely unreasonable, I think you'd agree. After discussing the matter since 2005, it became abundantly clear that we need a rule that was simple to administer — and that didn't require our administrative staff to outlay huge amounts of cash.
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By contrast we're not getting paid to do this, so we all have to work within our own personal budgets. And if we can't get a copy of a particular book, we can't get a copy of that book. So our rule that "only stories count" is immensely practical. It's something we can enforce without having to buy and sit in judgement upon every single release.
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All rules of the wiki have to be clear and easy to administer.

It's specifically referring to an analogous case where what's covered is in universe but non narrative material inside a book that's not wholly narrative, rather than in universe stories inside a book that's not wholly narrative, but the basic principle seems applicable.