All TV series have bibles. For the sake of continuity, writers follow it. https://www.startrek.com/news/a-look-inside-star-trek-series-bibles https://www.start

All TV series have bibles. For the sake of continuity, writers follow it. https://www.startrek.com/news/a-look-inside-star-trek-series-bibles https://www.startrek.com/news/a-look-inside-star-trek-series... It makes sense to consider a set of interlocking bibles a canon. The fans are just using industry terms (they're that into their fandom!), not inventing something new for the sake of "Internet quibbling."